US3243376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic striping composition for sound recording motion picture film
Assignee: Eastman Kodak Co
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Filing: 1965-01-04
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Granted: 1966-03-29
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert C Lovick
- 👤 John R Peer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/633
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A MAGNETIC STRIPING COMPOSITION ADAPTED TO COATING ONTO AN ALKALI-SOLUBLE ANTIHALATION LAYER OF A MOTION PICTURE FILM TO FORM A MAGNETIC STRIPE COMPOSITE WITH THE LAYER AND IRREMOVABLE FROM THE FILM WITH ALKALINE SOLUTION, CONSISTING ESSENTIALLY OF AN ORGANIC SOLVENT SOLUTION OF FROM ABOUT 1:1 TO 1:5 PARTS BY WEIGHT OF A FILM FORMING POLYMERIC BINDER INSOLUBLE IN ALKALINE SOLUTION TO FERRO-MAGNETIC PARTICLES AND ABOUT 9-22% BY WEIGHT OF A LOWER N,N-DIALKYLAMKIDE OF A LOWER ALIPHATIC ACID.
Claim 2
Dependent Claim
77 words
A MAGNETIC STRIPING COMPOSITION ADAPTED TO COATING ONTO AN ALKALI-SOLUBLE ANTIHALATION LAYER OF A MOTION PICTURE FILM TO FORM A MAGNETIC STRIPE COMPOSITE WITH THE LAYER AND IRREMOVABLE FROM THE FILM WITH ALKALINE SOLUTION, CONSISTING ESSENTIALLY OF AN ORGANIC SOLVENT SOLUTION OF FROM ABOUT 1:1 TO 1:5 PARTS BY WEIGHT OF A FILM FORMING POLYMERIC BINDER INSOLUBLE IN ALKALINE SOLUTION TO FERRO-MAGNETIC PARTICLES AND ABOUT 9-22% BY WEIGHT OF A LOWER N,N-DIALKYLAMKIDE OF A LOWER ALIPHATIC ACID.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |