Patent US4824449A successfully refreshed from Google Patents.
Patent US3564746A successfully refreshed from Google Patents.
US3564746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Main-spring releasing accessory for firearms
Assignee: Individual
•
Filing: 1969-03-28
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Granted: 1971-02-23
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Expires: 1989-03-28
Abstract
Abstract A DEVICE FOR RELEASING THE TENSION OF THE MAIN-SPRING OF A FIREARM WITHOUT BECOMING A CAPTIVE PART THEREOF.
Inventors
- 👤 Elbert E Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:28
CPC Classifications
F; F41; F41C; F41C27/00; F41A; F41A17/00; F41A17/44; F41A17/56
Claims Analysis
Total Claims: 0
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |