Patent US2921086A successfully refreshed from Google Patents.
US2921086A
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Organophosphorus compounds derived from phosphorothiolothionates and epoxides
Assignee: Eastman Kodak Co
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Filing: 1957-08-12
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Granted: 1960-01-12
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Expires: 1977-08-12
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Mccall
- 👤 Richard L Mcconnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:17
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/655; C07F9/65502; C07F9/06; C07F9/16; C07F9/165; C07F9/1651
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
AS A COMPOSITION OF MATTER, THE ORGANOPHOSPHORUS COMPOUNDS HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
US2783203A
Cited
US2783202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |