US2557151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring actuated generator for rocket launchers
Assignee: Individual
•
Filing: 1944-08-24
•
Granted: 1951-06-19
•
Expires: 1964-08-24
Abstract
No abstract record available.
Inventors
- 👤 Leslie A Skinner
- 👤 Julius A Folse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:30
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/045; F41F3/0455; F41A; F41A19/00; F41A19/58; F41A19/60; F41A19/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US372958A
Cited
US407327A
Cited
US1155061A
Cited
US1280579A
Cited
US1670419A
Cited
US2156605A
Cited
US2389514A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |