Patent US2610981A successfully refreshed from Google Patents.
US2610981A
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US
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Production of thiols and thioethers
Assignee: Phillips Petroleum Co
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Filing: 1947-08-28
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Granted: 1952-09-16
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Expires: 1967-08-28
Abstract
No abstract record available.
Inventors
- 👤 Graham H Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:06
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; C; C07; C07C; C07C319/00; C07C319/02; C07C319/04; C07C319/14; C07C319/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2101096A
Cited
US2373343A
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US2387224A
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US2392554A
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US2392555A
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US2449891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |