Patent US3850222A successfully refreshed from Google Patents.
Patent US3431824A successfully refreshed from Google Patents.
US3431824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ejector assembly with lockable storeengaging presser foot
Assignee: United States Department of the Navy
•
Filing: 1967-07-31
•
Granted: 1969-03-11
•
Expires: 1987-07-31
Abstract
No abstract record available.
Inventors
- 👤 Carl A Damm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:58
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02; B64D1/04; B64D1/06; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/953
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |