US2804919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volumetric combustion method and apparatus
Assignee: Individual
•
Filing: 1949-07-20
•
Granted: 1957-09-03
•
Expires: 1969-07-20
Abstract
No abstract record available.
Inventors
- 👤 Kinnison John Emmett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:24
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/34; F23D14/36; F23D14/46; F23D14/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2116096A
Cited
US1395139A
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US1547381A
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US2113426A
Cited
US2269699A
Cited
US2222822A
Cited
US2353865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |