Patent US2805744A successfully refreshed from Google Patents.
US2805744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction plate for fluid pressure operated clutch or brake
Assignee: CARDWELL CLUTCH AND BRAKE Inc
•
Filing: 1952-12-15
•
Granted: 1957-09-10
•
Expires: 1972-12-15
Abstract
No abstract record available.
Inventors
- 👤 Harland W Cardwell
- 👤 Richard M Smoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:17
CPC Classifications
F; F16; F16D; F16D55/00; F16D55/02; F16D55/04; F16D55/06; F16D25/00; F16D25/04; F16D25/042; F16D25/044
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |