US2489123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure responsive mechanism for pressure measuring apparatus
Assignee: Elsag Bailey Inc
•
Filing: 1945-06-18
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Granted: 1949-11-22
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Expires: 1965-06-18
Abstract
No abstract record available.
Inventors
- 👤 Paul S Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:59
CPC Classifications
G; G01; G01L; G01L19/00; G01L19/0007; G01L7/00; G01L7/02; G01L7/06; G01L7/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7834
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US444911A
Cited
US1546602A
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US1026324A
Cited
US2000308A
Cited
US1923585A
Cited
US2301031A
Cited
GB548267A
Cited
US2384169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |