Pressure diaphragm

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Information

Patent Grant
D267743

References
Source

Patent Number
D267,743
Date Filed
Monday, December 15, 1980
44 years ago
Date Issued
Tuesday, January 25, 1983
42 years ago

Inventors
Original Assignees
- Ivac Corporation
Examiners
- Ansher; Bernard
Agents
- Fulwider, Patton, Rieber, Lee & Utecht

US Classifications
- D24 - Medical and laboratory equipment
- D23 - Environmental heating and cooling
Field of Search
- US
- 128 214 R
- 128 214 E
- 128 214 F
- 128 673
- 128 675
- 128 748
- 128 350 V
- 128 DIG 13
- 128 DIG 12
- 073 715
- 073 723
- D23 19
- D23 21
- D24 53
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a pressure diaphragm, as shown.

US Referenced Citations (19)

Number	Name	Date	Kind
69894	Beardslee	Oct 1867
D202701	Davis, Jr.	Nov 1965
D204670	Gilson	May 1966
D237631	Katzman	Nov 1975
D257286	Folkman	Oct 1980
D259278	McCaw et al.	May 1981
1640606	Joyce	Aug 1927
2369707	Baak	Feb 1945
2444163	Kocmich	Jun 1948
2535998	Bierman	Dec 1950
2629399	Kulick	Feb 1953
3499434	Ullrich et al.	Mar 1970
3713341	Madsen et al.	Jan 1973
3756243	Schulte	Sep 1973
3818765	Eriksen	Jun 1974
3880151	Nilsson et al.	Apr 1975
3901245	Spitz et al.	Aug 1975
3999553	Spitz et al.	Dec 1976
4072056	St. Jacques Lee	Feb 1978