US3473331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incinerator-gas turbine cycle
Assignee: Combustion Engineering Inc
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Filing: 1968-04-04
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Granted: 1969-10-21
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Expires: 1988-04-04
Abstract
No abstract record available.
Inventors
- 👤 John H Fernandes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:57
CPC Classifications
F; F02; F02C; F02C1/00; F02C1/04; F02C1/05; F23; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/44; F23G5/46; F23J; F23J15/00; F23J15/02; F23J15/04; F23G2203/00; F23G2203/105; F23G2206/00; F23G2206/20; F23G2206/203; F23J2217/00; F23J2217/50; Y; Y02; Y02E; Y02E20/00; Y02E20/12
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |