US3388074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage steam reforming with rapid warm-up in first stage by means of a promoted catalyst
Assignee: CATALYSTS and CHEM Inc
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Filing: 1963-12-26
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Granted: 1968-06-11
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ronald E Reitmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:48
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/386; B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/892; C01B3/40; C01B2203/00; C01B2203/06; C01B2203/068; C01B2203/08; C01B2203/0805; C01B2203/0811; C01B2203/0816; C01B2203/0822; C01B2203/0866; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1082; C01B2203/1094; C01B2203/12; C01B2203/1205; C01B2203/1211; C01B2203/1235; C01B2203/1241; C01B2203/1247; C01B2203/14; C01B2203/142; C01B2203/80; C01B2203/82; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2142678A
Cited
US2803295A
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US2868632A
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GB834595A
Cited
US3031286A
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US3271325A
Cited
US3334055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |