US2798191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitive pressure measuring servosystem
Assignee: Individual
•
Filing: 1953-02-10
•
Granted: 1957-07-02
•
Expires: 1973-02-10
Abstract
No abstract record available.
Inventors
- 👤 Harrison D Brailsford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0041; H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H35/26; H01H35/2607
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731831A
Cited
US1855205A
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US1658577A
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US2123725A
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US2331871A
Cited
US2568586A
Cited
US2629259A
Cited
US2599288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |