Patent US2751889A successfully refreshed from Google Patents.
US2751889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air operated motor
Assignee: Individual
•
Filing: 1954-04-05
•
Granted: 1956-06-26
•
Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 William F Mohler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:51
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/12; F04B9/123; F04B9/125; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/066
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US641132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |