US2808412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted oxazoline-2-thiones and process
Assignee: Eastman Kodak Co
•
Filing: 1954-11-10
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Granted: 1957-10-01
•
Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jeffreys Roy Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:35
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/32; C07D263/34; C07D263/46; C09; C09B; C09B23/00; C09B23/02; C09B23/04; C09B23/10; C09B23/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
11 words
A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2115681A
Cited
US2089323A
Cited
US2089322A
Cited
US2112445A
Cited
US2325552A
Cited
US2245361A
Cited
US2362337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |