Patent US5679092A successfully refreshed from Google Patents.
Patent US2339927A successfully refreshed from Google Patents.
US2339927A
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US
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Process and catalyst for the preparation of predominant quantities of paraffin in the hydrogenation of carbon monoxide
Assignee: HYDROCARBON SYNTHESIS Corp
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Filing: 1941-01-08
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Granted: 1944-01-25
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Expires: 1961-01-08
Abstract
No abstract record available.
Inventors
- 👤 Heckel Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:55
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/04; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892; Y; Y10; Y10S; Y10S73/00; Y10S73/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-01-24 | 1947-07-26 | 1948-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-24 | 1951-07-26 | 1952-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-24 | 1955-07-26 | 1956-01-25 | $7700.00 | Window Closed / Lapsed |