Patent US3003399A successfully refreshed from Google Patents.
US3003399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockage of breech of mortar barrel to counterplate
Assignee: Individual
•
Filing: 1959-03-27
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Granted: 1961-10-10
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 Hans O Donner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
F; F41; F41A; F41A23/00; F41A23/52; F41A23/54; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49698; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49853; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32631
Claims Analysis
Total Claims: 0
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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) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |