US2135161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary fluid motor
Assignee: Individual
•
Filing: 1936-11-20
•
Granted: 1938-11-01
•
Expires: 1956-11-20
Abstract
No abstract record available.
Inventors
- 👤 Bendsil Van Lawrence
- 👤 John Louis Joseph St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:29
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/12; F03B3/14; F03B3/145; F05; F05B; F05B2260/00; F05B2260/70; F05B2260/76; Y; Y02; Y02E; Y02E10/00; Y02E10/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-10-31 | 1942-05-02 | 1942-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-31 | 1946-05-02 | 1946-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-31 | 1950-05-02 | 1950-11-01 | $7700.00 | Window Closed / Lapsed |