Hand held vacuum pump for use in delivery rooms
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Description
FIG. 1 is a front perspective view of a hand held vacuum pump showing our new design, on an enlarged scale;
FIG. 2 is a left side elevational view thereof, the right side being a mirror image;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a top plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D283533 | April 22, 1986 | Evenson |
D304757 | November 21, 1989 | Post et al. |
D307935 | May 15, 1990 | Tretzger |
4106534 | August 15, 1978 | Johnson |
4338066 | July 6, 1982 | Luker |
4565506 | January 21, 1986 | Williams |
- Industrial Plastics Cat., Discounts item, vacuum pump w/gauge, p. 125.
Patent History
Patent number: D321927
Type: Grant
Filed: Mar 27, 1989
Date of Patent: Nov 26, 1991
Assignees: Lawrence Smith (Bend, OR), Emily Smith (Bend, OR)
Inventors: Lawrence M. Smith (Bend, OR), Richard N. Cooper (Lake Oswego, OR)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Marger, Johnson, McCollom & Stolowitz, Inc.
Application Number: 7/328,959
Type: Grant
Filed: Mar 27, 1989
Date of Patent: Nov 26, 1991
Assignees: Lawrence Smith (Bend, OR), Emily Smith (Bend, OR)
Inventors: Lawrence M. Smith (Bend, OR), Richard N. Cooper (Lake Oswego, OR)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Marger, Johnson, McCollom & Stolowitz, Inc.
Application Number: 7/328,959
Classifications