Patent US2087492A successfully refreshed from Google Patents.
Patent US2508364A successfully refreshed from Google Patents.
US2508364A
Expired / Lapsed
US
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Reactions of lower trialkyl phosphites with sulfoxy halides and products thereof
Assignee: Eastman Kodak Co
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Filing: 1946-12-26
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Granted: 1950-05-23
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Expires: 1966-12-26
Abstract
No abstract record available.
Inventors
- 👤 Bell Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:15
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/20; C07F9/1658
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
5 words
THE COMPOUND HAVING THE FORMULA:
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) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |