US2808130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal resistance fluid pressure clutch or brake
Assignee: FRANK THERRIAULT
•
Filing: 1954-08-09
•
Granted: 1957-10-01
•
Expires: 1974-08-09
Abstract
No abstract record available.
Inventors
- 👤 William G Merritt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/06; F16D31/00; F16D31/08; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7783
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1470804A
Cited
US2042539A
Cited
FR812657A
Cited
US2152570A
Cited
FR909346A
Cited
US2551677A
Cited
US2681713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |