Patent
   D289861
Priority
Apr 28 1986
Filed
Apr 28 1986
Issued
May 19 1987
Expiry
May 19 2001
Assg.orig
Entity
unknown
4
19
n/a
The ornamental design for an extraction vacuum manifold, as shown and described.

FIG. 1 is a front elevational view of an extraction vacuum manifold showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 6 is a top and right front perspective view of another embodiment of our new design of FIGS. 1-5, wherein the sole difference is that the base plate support is omitted.

Wachob, George D., Rightnour, Robert W.

Patent Priority Assignee Title
7430784, Nov 18 2005 Vacuum-cleaning apparatus for a stable
D327855, Oct 23 1987 LIDA MANUFACTURING CORPORATION Vacuum manifold lid for extraction processing
D364567, Nov 15 1993 Container cover with counting and display means
D676567, Oct 21 2011 Becton, Dickinson and Company; Becton Dickinson and Company Sort chamber
Patent Priority Assignee Title
3265214,
3266554,
3342333,
3535086,
4065384, Oct 26 1976 University of Illinois Foundation Graft thin layer chromatography
4141833, Apr 21 1977 Analytical Instrument Specialties, Inc. Anchoring means for TLC syringe and apparatus
4272381, Oct 22 1979 Schleicher & Schuell, Inc. Thin-layer chromatography spotting
4346001, Jun 12 1981 Labor Muszeripari Muvek Linear overpressured thin-layer chromatographic apparatus
109217,
142227,
186661,
209776,
211359,
226847,
238887,
D266151, Feb 28 1980 Siemens Corporation Fraction collector for liquid chromatography
D266913, Aug 01 1980 Planter
D270902, Jun 01 1981 Analtech, Incorporated Chromatography chamber
T986008, Jan 24 1979 Apparatus for holding plates being subjected to multiple development under controlled time
//////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 24 1986RIGHTNOUR, ROBERT W SUPELCO, INC ASSIGNMENT OF ASSIGNORS INTEREST 0046270269 pdf
Apr 25 1986WACHOB, GEORGE D SUPELCO, INC ASSIGNMENT OF ASSIGNORS INTEREST 0046270269 pdf
Apr 28 1986Supelco, Inc.(assignment on the face of the patent)
May 06 1993SUPELCO, INC S A C CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0065540035 pdf
May 13 1993S A C CORPORATIONSUPELCO, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0070820090 pdf
Apr 08 1997SUPELCO, INC Sigma-Aldrich CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0085950174 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule