US2967537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus responsive to a plurality of independently variable pressures
Assignee: Individual
•
Filing: 1958-12-03
•
Granted: 1961-01-10
•
Expires: 1978-12-03
Abstract
No abstract record available.
Inventors
- 👤 John U Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:54
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/44; G05B11/58; F; F22; F22B; F22B35/00; G06; G06G; G06G5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736199A
Cited
US2507498A
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US2563374A
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US2521477A
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US2659531A
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US2771897A
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US2888940A
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US2852942A
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US2800136A
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US2851048A
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US2867229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |