US2960818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-generators of the internal-combustion-operated free-piston type
Assignee: Societe dEtudes et de Participations Eau Gaz Electricite Energie SA
•
Filing: 1955-07-06
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Granted: 1960-11-22
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Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 Horgen Helge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:06
CPC Classifications
F; F02; F02C; F02C5/00; F02C5/06; F02C5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2303794A
Cited
US2355924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |