US2958025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion of bodies such as projectiles, reciprocating members and the like
Assignee: Individual
•
Filing: 1956-12-11
•
Granted: 1960-10-25
•
Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Villiers Willem J De
- 👤 Bruckmann Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:07
CPC Classifications
H; H02; H02K; H02K41/00; H02K41/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US464063A
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US818589A
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US1817638A
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US2483895A
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US2640955A
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US2686280A
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US2690128A
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US2892140A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |