US2983710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerized alpha-mono-olefins stabilized with 2-tert. butyl-4-higher alkoxyphenols
Assignee: Eastman Kodak Co
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Filing: 1957-09-19
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Granted: 1961-05-09
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Expires: 1977-09-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Tholstrup
- 👤 Bell Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:53
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A STABILIZED COMPOSITION OF MATTER NORMALLY SUBJECT TO THERMAL OXIDATIVE DEGRADATION CONSISTING OF A NORMALLY SOLID POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE AND FROM ABOUT 0.001% TO ABOUT 3% BY WEIGHT OF A STABILIZER SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FOLLOWING FORMULAS:
Claim 2
Dependent Claim
50 words
A STABILIZED COMPOSITION OF MATTER NORMALLY SUBJECT TO THERMAL OXIDATIVE DEGRADATION CONSISTING OF A NORMALLY SOLID POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE AND FROM ABOUT 0.001% TO ABOUT 3% BY WEIGHT OF A STABILIZER SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FOLLOWING FORMULAS:
References Cited (Backward Citations)
US2704724A
Cited
US2835650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |