US2775141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential
Assignee: Individual
•
Filing: 1952-01-23
•
Granted: 1956-12-25
•
Expires: 1972-01-23
Abstract
No abstract record available.
Inventors
- 👤 Rouning Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/27; F16H48/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1251466A
Cited
US1529942A
Cited
US1568639A
Cited
US1659833A
Cited
US1933143A
Cited
US1916715A
Cited
GB418582A
Cited
US2229228A
Cited
US2267362A
Cited
US2334221A
Cited
US2375938A
Cited
US2400728A
Cited
US2489859A
Cited
US2546173A
Cited
US2463091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |