US2432942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Submerged combustion system
Assignee: SUBMERGED COMB Co OF AMER
•
Filing: 1943-04-05
•
Granted: 1947-12-16
•
Expires: 1963-04-05
Abstract
No abstract record available.
Inventors
- 👤 Theodore S See
- 👤 Tegarden John Edward
- 👤 Williams Arthur
- 👤 Walter G See
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2119064A
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US2244401A
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US2174533A
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US2265259A
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US2203907A
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US2345399A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |