Patent US1376170A successfully refreshed from Google Patents.
US1376170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical control of sails
Assignee: Individual
•
Filing: 1920-08-24
•
Granted: 1921-04-26
•
Expires: 1940-08-24
Abstract
No abstract record available.
Inventors
- 👤 Shann Montague Herbe Churchill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:38
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06
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) | 1924-04-25 | 1924-10-25 | 1925-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-04-25 | 1928-10-25 | 1929-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-04-25 | 1932-10-25 | 1933-04-26 | $7700.00 | Window Closed / Lapsed |