US3540388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasification material combustion method and apparatus
Assignee: Combustion Power Co Inc
•
Filing: 1968-08-30
•
Granted: 1970-11-17
•
Expires: 1988-08-30
Abstract
No abstract record available.
Inventors
- 👤 Richard D Smith
- 👤 Dale A Furlong
- 👤 Ronald D Kinsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:47
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/44; F23G5/46; F02; F02C; F02C3/00; F02C3/20; F02C3/26; F23G5/02; F23G5/027; F23G5/30; F23G2201/00; F23G2201/30; F23G2201/303; F23G2201/304; F23G2201/40; F23G2206/00; F23G2206/20; F23G2206/203; Y; Y02; Y02E; Y02E20/00; Y02E20/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |