US3451307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic control circuit for controlling the rate of fire of a machinegun
Assignee: Individual
•
Filing: 1967-12-06
•
Granted: 1969-06-24
•
Expires: 1987-12-06
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Grundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:05
CPC Classifications
F; F41; F41A; F41A19/00; F41A19/58; F41A19/64; F41A19/66; F41A19/67
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3142025A
Cited
US2831402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |