Patent
   D316897
Priority
Apr 14 1987
Filed
Apr 14 1987
Issued
May 14 1991
Expiry
May 14 2005
Assg.orig
Entity
unknown
4
0
n/a
The ornamental design for a combined gas treatment tube and enclosing guard tube, as shown and described.

FIG. 1 is a side elevational view of a combined gas treatment tube and enclosing guard tube, showing my new design, the opposite side elevational view being identical thereto;

FIG. 2 is a front elevational view thereof, the rear elevational view being identical thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a perspective view thereof;

FIG. 6 is a side elevational view of a second embodiment of FIG. 1, the opposite side elevational view being identical thereto;

FIG. 7 is a front elevational view thereof, the rear elevational view being identical thereto;

FIG 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a perspective view thereof;

FIG. 11 is a side elevational view of a third embodiment of FIG. 1, the opposite side elevational view being identical thereto;

FIG. 12 is a front elevational view thereof, the rear elevational view being identical thereto;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof; and

FIG. 15 is a perspective view thereof.

McDevitt, John F., Burger, Barry L.

Patent Priority Assignee Title
D360265, Mar 07 1994 Chromatography Research Supplies, Inc. Manifold connector
D555067, Dec 30 2005 Oil tank with transparent sides
D653760, Aug 31 2010 FRESHRAIN, LLC Vapor ion plasma generator
D905868, Sep 20 2017 Emulate, Inc Gas regulatory pressure vessel
Patent Priority Assignee Title
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 14 1987Supelco, Inc.(assignment on the face of the patent)
May 05 1987BURGER, BARRY L SUPELCO, INC , A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0056020501 pdf
May 06 1987MCDEVITT, JOHN F SUPELCO, INC , A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST 0056020501 pdf
May 06 1993SUPELCO, INC S A C CORPORATIONCORRECTIVE ASSIGNMENT TO CORRECT ASSIGNMENT PREVIOUSLY RECORDED ON REEL 6554 FRAME 0035 0066770797 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
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