US2861053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin compositions containing certain 2-hydroxy-4-alkoxy benzophenones
Assignee: Eastman Kodak Co
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Filing: 1957-11-07
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Granted: 1958-11-18
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Expires: 1977-11-07
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Lappin
- 👤 John W Tamblyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:25
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/70; C07C45/71; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/132
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A POLYOLEFIN PLASTIC COMPOSITION COMPRISING A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, AND, AS AN AGENT FOR INHIBITING DETERIORATION OF THE PLASTIC BY ULTRAVIOLET LIGHT, A 2-HYDROXY-4ALKOXYBENZOPHENONE IN WHICH THE ALKOXY GROUP CONTAINS FROM 12 TO 14 CARBON ATOMS.
Claim 2
Dependent Claim
43 words
A POLYOLEFIN PLASTIC COMPOSITION COMPRISING A POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE AND POLYPROPYLENE, AND, AS AN AGENT FOR INHIBITING DETERIORATION OF THE PLASTIC BY ULTRAVIOLET LIGHT, A 2-HYDROXY-4ALKOXYBENZOPHENONE IN WHICH THE ALKOXY GROUP CONTAINS FROM 12 TO 14 CARBON ATOMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |