US2730077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved rotary compressed-air operated motor
Assignee: Individual
•
Filing: 1951-10-22
•
Granted: 1956-01-10
•
Expires: 1971-10-22
Abstract
No abstract record available.
Inventors
- 👤 Williams George Henry Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:31
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/30; F01C1/34; F01C1/344; F04; F04C; F04C18/00; F04C18/30; F04C18/34; F04C18/344
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US994400A
Cited
US1026165A
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US1010956A
Cited
US1942784A
Cited
US2255781A
Cited
US2222689A
Cited
US2475224A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |