US3454521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-alpha-olefins stabilized with a synergistic combination
Assignee: Eastman Kodak Co
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Filing: 1967-06-14
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Granted: 1969-07-08
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Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Tholstrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:15
CPC Classifications
C; C08; C08K; C08K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1245606A
Cited
US2972597A
Cited
US2972596A
Cited
FR1248217A
Cited
US2980645A
Cited
US3039993A
Cited
US3144422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |