US3454383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasification method and apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1966-02-24
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Granted: 1969-07-08
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Expires: 1986-02-24
Abstract
No abstract record available.
Inventors
- 👤 Edward A Pirsh
- 👤 Warnie L Sage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:56
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/06; C10J3/08; C10J3/46; C10J3/48; C10J3/485; C10J3/487; C10J3/52; C10J3/526; C10J3/72; C10J3/74; C10J3/76; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0903; C10J2300/0906; C10J2300/0913; C10J2300/093; C10J2300/0953; C10J2300/0956; C10J2300/18; C10J2300/1807; C10J2300/1861; C10J2300/1884; C10J2300/1892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2582710A
Cited
US2557680A
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US2614069A
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US2743217A
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US2879148A
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US2866696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |