US2221706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breech construction and operation
Assignee: Eclipse Aviation Corp
•
Filing: 1938-07-07
•
Granted: 1940-11-12
•
Expires: 1958-07-07
Abstract
No abstract record available.
Inventors
- 👤 Clinton H Havill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:47
CPC Classifications
F; F41; F41A; F41A7/00; F41A7/08; F41A9/00; F41A9/01; F41A9/24; F41A9/26; F41A9/27; Y; Y10; Y10S; Y10S60/00; Y10S60/914
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) | 1943-11-12 | 1944-05-13 | 1944-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-12 | 1948-05-13 | 1948-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-12 | 1952-05-13 | 1952-11-12 | $7700.00 | Window Closed / Lapsed |