US2901973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm means for subcalibre non-spinning projectiles
Assignee: Individual
•
Filing: 1954-11-22
•
Granted: 1959-09-01
•
Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Donner Hans Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:43
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/061; F42B10/00; F42B10/02; F42B10/04; F42B10/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |