US2940363A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocket release mechanism
Assignee: Weatherhead Co
•
Filing: 1957-07-30
•
Granted: 1960-06-14
•
Expires: 1977-07-30
Abstract
No abstract record available.
Inventors
- 👤 George A Hamilton
- 👤 Marette Ralph Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:03
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR914341A
Cited
US2430636A
Cited
US2460929A
Cited
FR1036738A
Cited
US2817272A
Cited
FR1102333A
Cited
US2764066A
Cited
US2830497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |