Patent US3412640A successfully refreshed from Google Patents.
US3412640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket launcher
Assignee: Alsco Inc
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Filing: 1967-05-19
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Granted: 1968-11-26
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 John J Nash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:41
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/06; F41F3/065; F41F3/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2481910A
Cited
US2448962A
Cited
US2742820A
Cited
US2844073A
Cited
US2848925A
Cited
US2931273A
Cited
US3315565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |