Patent
   D297860
Priority
Oct 18 1985
Filed
Oct 18 1985
Issued
Sep 27 1988
Expiry
Sep 27 2002
Assg.orig
Entity
unknown
11
4
n/a
The ornamental design for a filter unit, as shown and described.

FIG. 1 is a front elevational view of a filter unit illustrating our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side elevational view of a modified form of FIG. 1;

FIG. 7 is a side elevational view of a second modified form of FIG. 1;

FIG. 8 is a front elevational view of FIG. 6; and

FIG. 9 is a front elevational view of FIG. 7.

The top and bottom views of FIGS. 6 and 7 are identical to that shown in FIGS. 1-5 with the outlet port eliminated.

Leoncavallo, Richard A., Mehra, Ravinder C., Baird, Peter K., Rajguru, Sharad R.

Patent Priority Assignee Title
5234585, Dec 19 1991 Foxx Life Sciences Vacuum filtration device
5948246, Dec 19 1991 Foxx Life Sciences Vacuum filtration device
7798333, Sep 02 2005 Foxx Life Sciences Systems, apparatus and methods for vacuum filtration
8157104, Jul 26 2007 Foxx Life Sciences Apparatus for supporting a vacuum filtration device
8158009, May 23 2007 Foxx Life Sciences Methods and apparatus for foam control in a vacuum filtration system
8231012, Jul 26 2007 Foxx Life Sciences Filtrate storage system
8235221, Jul 26 2007 Foxx Life Sciences Methods for vacuum filtration
D731049, Mar 05 2013 Covidien LP EVQ housing of an exhalation module
D776295, Nov 04 2014 CHARLES RIVER LABORATORIES, INC Base
D776296, Nov 04 2014 REAMETRIX, INC Adapter
D782694, Nov 04 2014 CHARLES RIVER LABORATORIES, INC Filtration device
Patent Priority Assignee Title
3295686,
4357240, Feb 27 1981 Manufacturers Hanover Trust Company Disposable, one-piece filter unit
4614585, Mar 02 1981 Manufacturers Hanover Trust Company Frangible bonded disposable filtration unit with recoverable filter
D270947, Mar 02 1981 Manufacturers Hanover Trust Company Unitary, disposable filter unit
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Oct 15 1985LEONCAVALLO, RICHARD A SYBRON CORPORATION 1100 MIDTOWN TOWER ROCHESTER, NY A CORP OF NYASSIGNMENT OF ASSIGNORS INTEREST 0044700996 pdf
Oct 15 1985BAIRD, PETER K SYBRON CORPORATION 1100 MIDTOWN TOWER ROCHESTER, NY A CORP OF NYASSIGNMENT OF ASSIGNORS INTEREST 0044700996 pdf
Oct 15 1985MEHRA, RAVINDER C SYBRON CORPORATION 1100 MIDTOWN TOWER ROCHESTER, NY A CORP OF NYASSIGNMENT OF ASSIGNORS INTEREST 0044700996 pdf
Oct 15 1985RAJGURU, SHARAD R SYBRON CORPORATION 1100 MIDTOWN TOWER ROCHESTER, NY A CORP OF NYASSIGNMENT OF ASSIGNORS INTEREST 0044700996 pdf
Oct 18 1985Nalge Company(assignment on the face of the patent)
Jul 31 1986SYBRON CORPORATION, A CORP OF NYNalge CompanyASSIGNMENT OF ASSIGNORS INTEREST 0046280848 pdf
Oct 20 1987THERMOLYNE CORPORATIONManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987BARNSTEAD COMPANYManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987Ormco CorporationManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987Erie Scientific CompanyManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987Nalge CompanyManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987Kerr Manufacturing CompanyManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987MEXOSERV COMPANYManufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987BOTHNIA HOLDINGS, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987THERMOLYNE HOLDINGS, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC RESIDUAL, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC THERMOLYNE, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC BARNSTEAD, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC THERMO-BARN, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC ORMCO, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC ERIE, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC NALGE, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC KERR, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Oct 20 1987SAC CK, INC Manufacturers Hanover Trust CompanyASSIGNMENT OF ASSIGNORS INTEREST 0048340513 pdf
Jul 01 1993ERIE SCIENTIFIC COMPANY A CORP OF DELAWAREChemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Jul 01 1993NALGE COMPANY A CORP OF DELAWAREChemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Jul 01 1993KERR MANUFACTURING A CORP OF DELAWAREChemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Jul 01 1993ORMCO CORP A CORP OF DELAWAREChemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Jul 01 1993SYBRON CORP Chemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Jul 01 1993BARNSTEAD THERMOLYNE CORP A CORP OF DELAWAREChemical BankSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0066670903 pdf
Apr 23 1996Chemical BankNalge Nunc International CorporationASSIGNMENT AND RELINQUISHMENT OF SECURITY INTEREST IN PATENTS AND TRADEMARKS0104040933 pdf
Sep 30 1996Nalge CompanyNalge Nunc International CorporationCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0104040867 pdf
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