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Patent
   D316899
Priority
Sep 01 1987
Filed
Feb 18 1988
Issued
May 14 1991
Expiry
May 14 2005
Inventors
Wellenstam…
Assg.orig
Astra Medi…
Assg.curr
Astra Tech…
Entity
unknown
Referenced by
12
References
4
Maint.:
n/a
The ornamental design for a two-chamber injector, as shown.

FIG. 1 is a top perspective view of a two-chamber injector, showing our new design;

FIG. 2 is a bottom perspective view thereof; and

FIG. 3 is a side elevational view thereof.
INVENTORS:

Wellenstam, Kjell I., Andersson, Ake B.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
5993412, May 19 1997 BIOJECT, INC Injection apparatus
D349958, Jul 24 1992 BIOJECT, INC Needleless injector
D422697, Jan 13 1999 POWDERJACT RESEARCH LIMITED Hand held injector
D508208, Mar 31 2004 HISAMITSU PHARMACEUTICAL CO , INC Container for spraying
D511690, Feb 24 2004 APTAR FRANCE SAS Fluid product dispenser
D699342, Mar 09 2011 SUZUKEN COMPANY LIMITED; Taisei Kako Company Limited Injector
D773650, Jun 19 2015 Eli Lilly and Company Automatic injection device
D919817, Aug 25 2017 Ultradent Products, Inc. Knob of a dental matrix device
RE48006, Jun 19 2015 Eli Lily and Company Base for an automatic injection device
RE48020, Jun 19 2015 Eli Lilly and Company Automatic injection device
RE48021, Jun 19 2015 Eli Lilly and Company Lock for an automatic injection device
RE49091, Jun 19 2015 Eli Lilly and Company Automatic injection device and a button thereof
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3636950,
3688765,
3946732, Aug 08 1973 Ampoules, Inc. Two-chamber mixing syringe
D304616, Apr 30 1987 Medi-Ject Corporation Medicament injector
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 18 1988Astra Meditec AB(assignment on the face of the patent)
Jul 04 1988ANDERSSON, AKE B ASTRA MEDITEC AB, A COMPANY OF SWEDENASSIGNMENT OF ASSIGNORS INTEREST 0049430463 pdf
Jul 04 1988WELLENSTAM, KJELL I ASTRA MEDITEC AB, A COMPANY OF SWEDENASSIGNMENT OF ASSIGNORS INTEREST 0049430463 pdf
Apr 14 1992Astra Meditec AktiebolagAstra Tech AktiebolagASSIGNMENT OF ASSIGNORS INTEREST 0062680017 pdf
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