Patent US3227555A successfully refreshed from Google Patents.
US3227555A
Expired / Lapsed
US
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Raw striping process for sonotrack dispersions
Assignee: Eastman Kodak Co
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Filing: 1961-10-02
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Granted: 1966-01-04
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Gilden R Van Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:25
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/12; G03C5/14; G11; G11B; G11B5/00; G11B5/62; G11B5/633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A SENSITIZED MOTION PICTURE FILM HAVING A MAGNETIC STRIPE COATING OVER AN ALKALI SOLUBLE BACKING LAYER SELECTED FROM THE CLASS CONSISTING OF CELLULOSE AND POLYVINYL ALCOHOL ESTERS OF DICARBOXYLIC ACIDS HAVING AT LEAST 4 CARBON ATOMS, THE AREA UNDER THE MAGNETIC STRIPE HAVING BEEN INSOLUBILIZED BY COATING WITH A MAGNETIC OXIDE COATING CONTAINING 0.1-4% OF A DIAZOMETHANE DERIVATIVE.
Claim 2
Dependent Claim
48 words
A PROCESS OF SELECTIVELY RENDERING INSOLUBLE IN ALKALINE SOLUTION AN ANTIHALATION LAYER ON A PHOTOGRAPHIC FILM SUPPORT AND CONTAINING A MEMBER OF THE CLASS CONSISTING OF ALKALI-SOLUBLE CELLULOSE ESTERS AND SYNTHETIC RESINS, COMPRISING APPLYING A SOLUTION CONTAINING 0.1-5% OF A DIAZOMETHANE DERIVATIVE TO A PORTION OF THE LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |