US1923995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing and stopping propeller mechanism
Assignee: Individual
•
Filing: 1932-05-31
•
Granted: 1933-08-22
•
Expires: 1952-05-31
Abstract
No abstract record available.
Inventors
- 👤 Nock Cecil John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/02; B63H23/08; F; F16; F16H; F16H3/00; F16H3/02; F16H3/20; F16H3/40; Y; Y10; Y10S; Y10S185/00; Y10S185/01; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19372
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) | 1936-08-21 | 1937-02-20 | 1937-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-08-21 | 1941-02-20 | 1941-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-08-21 | 1945-02-20 | 1945-08-22 | $7700.00 | Window Closed / Lapsed |