US2487083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow responsive transmitter for telemetering systems
Assignee: Individual
•
Filing: 1945-05-16
•
Granted: 1949-11-08
•
Expires: 1965-05-16
Abstract
No abstract record available.
Inventors
- 👤 Howard D Warshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:55
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/28; G05; G05D; G05D7/00; G05D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1865795A
Cited
US1221726A
Cited
GB199492A
Cited
US1743852A
Cited
DE558087C
Cited
US2050242A
Cited
US2364930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |