US2565219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sail and method of manufacture of same
Assignee: Individual
•
Filing: 1946-05-15
•
Granted: 1951-08-21
•
Expires: 1966-05-15
Abstract
No abstract record available.
Inventors
- 👤 Donald W Gardiner
- 👤 William W Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:24
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/067; Y; Y10; Y10S; Y10S52/00; Y10S52/07; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T24/00; Y10T24/39; Y10T24/398
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |