US2953972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muzzle equalizer and blast minimizer for gun
Assignee: Individual
•
Filing: 1958-09-02
•
Granted: 1960-09-27
•
Expires: 1978-09-02
Abstract
No abstract record available.
Inventors
- 👤 Hans C Sorensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:15
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/32; F41A21/36; F41A21/325
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) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |