US3382044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of sulfur compounds in steamgas reforming and shift conversion processes
Assignee: Catalysts and Chemicals Inc
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Filing: 1965-02-03
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Granted: 1968-05-07
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Expires: 1985-02-03
Abstract
No abstract record available.
Inventors
- 👤 John S Cromeans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/20; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/48; C01B2203/00; C01B2203/02; C01B2203/0205; C01B2203/0227; C01B2203/0233; C01B2203/0283; C01B2203/0288; C01B2203/04; C01B2203/0415; C01B2203/0435; C01B2203/0445; C01B2203/045; C01B2203/0465; C01B2203/0475; C01B2203/0485; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1076; C01B2203/1082; C01B2203/12; C01B2203/1205; C01B2203/1211; C01B2203/1235; C01B2203/1241; C01B2203/1258; C01B2203/1264; C01B2203/127; C01B2203/14; C01B2203/146; C01B2203/147; C01B2203/16; C01B2203/1685
Claims Analysis
Total Claims: 0
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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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |