US2882278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organophosphorus derivatives of dihydrothiophene 1, 1-dioxide
Assignee: Eastman Kodak Co
•
Filing: 1956-08-09
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Granted: 1959-04-14
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Expires: 1976-08-09
Abstract
No abstract record available.
Inventors
- 👤 Richard L Mcconnell
- 👤 Jr Newton H Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6553; C07F9/655345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
THE ORGANOPHOSPHORUS COMPOUNDS CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
7 words
THE ORGANOPHOSPHORUS COMPOUNDS CORRESPONDING TO THE FORMULA
References Cited (Backward Citations)
US2749340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |