US2914918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine jet engine starter with serially-connected concentrically-arranged combustion chambers
Assignee: Poly Industries Inc
•
Filing: 1955-12-28
•
Granted: 1959-12-01
•
Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Leo I Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:26
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/003; F02C3/00; F02C3/04; F02C3/10; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078957A
Cited
US2399046A
Cited
US2432177A
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US2548975A
Cited
US2589078A
Cited
US2503006A
Cited
US2613500A
Cited
US2543864A
Cited
FR1046175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |