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US3492872A
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Apparatus for measuring a difference in pressure
Assignee: Continental Elektronidustrie AG
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Filing: 1967-11-27
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Granted: 1970-02-03
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Expires: 1987-11-27
Abstract
No abstract record available.
Inventors
- 👤 Heinz Caspar
- 👤 Horst Ziegler
- 👤 Felix Kudritzki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:57
CPC Classifications
G; G01; G01L; G01L13/00; G01L13/02; G01L13/025; G01L13/023; G01L19/00; G01L19/02; G01L19/04; G01L9/00; G01L9/0033; G01L9/0036; G01L9/0041; G01L9/007; G01L9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2627183A
Cited
US3225600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |