Patent US2830543A successfully refreshed from Google Patents.
US2830543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure transducer for converting rotary force to fluid pressure, or vice-versa
Assignee: MECHANISMS Co
•
Filing: 1955-07-27
•
Granted: 1958-04-15
•
Expires: 1975-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jay M Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:48
CPC Classifications
F; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F01C1/3441; F01C1/3445; F01C1/3446; F01C1/3447
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1495526A
Cited
US1651336A
Cited
US1898914A
Cited
US2278131A
Cited
US2333323A
Cited
US2371081A
Cited
US2551623A
Cited
US2462481A
Cited
US2499763A
Cited
US2628568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |