Patent US2985194A successfully refreshed from Google Patents.
US2985194A
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Differential pressure responsive apparatus
Assignee: Honeywell Inc
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Filing: 1956-08-10
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Granted: 1961-05-23
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Expires: 1976-08-10
Abstract
No abstract record available.
Inventors
- 👤 George R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:26
CPC Classifications
G; G01; G01L; G01L13/00; G01L13/02; G01L13/023; G01L7/00; G01L7/02; G01L7/06; G01L7/063; G01L7/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2590324A
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US2664749A
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US2659390A
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US2632474A
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US2762392A
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US2705021A
Cited
US2747614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |