US3143422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric cyclopentadiene coatings on polyethylene and other polymeric hydrocarbons
Assignee: Eastman Kodak Co
•
Filing: 1961-02-08
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Granted: 1964-08-04
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Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:41
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; Y; Y10; Y10S; Y10S220/00; Y10S220/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A HYDRPHOBIC POLYHYDROCARBON SUBSTRATED HAVING THEREON A COATING COMPRISING A CYCLOPENTADIENE HOMOPOLYMER OF MOLECULAR WEIGHT OF ABOUT 1,000 TO 16,000, THE SUBSTRATE BEING SUBSTANTIALLY FREE OF SAID HOMOPOLYMER, AND HAVING THEREON A LIGHT-SENSITIVE SILVER HALIDE EMULSION.
Claim 2
Dependent Claim
36 words
A HYDRPHOBIC POLYHYDROCARBON SUBSTRATED HAVING THEREON A COATING COMPRISING A CYCLOPENTADIENE HOMOPOLYMER OF MOLECULAR WEIGHT OF ABOUT 1,000 TO 16,000, THE SUBSTRATE BEING SUBSTANTIALLY FREE OF SAID HOMOPOLYMER, AND HAVING THEREON A LIGHT-SENSITIVE SILVER HALIDE EMULSION.
References Cited (Backward Citations)
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Cited
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US2698197A
Cited
US2676121A
Cited
US2996441A
Cited
US2875056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |