US3053661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester film elements and subbing compositions therefor
Assignee: Eastman Kodak Co
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Filing: 1958-08-18
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Granted: 1962-09-11
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Clemens B Starck
- 👤 Carl F Smith
- 👤 Richard J Hellmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L89/00; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
APHOTOGRAPHIC ELEMENT COMPRISING A FILM BASE OF AN ORIENTED CRYSTALLIZABLE POLYETHYLENE TEREPHTHALATE HAVING ON AT LEAST ONE SURFACE THEREOF A SUBSTRATUM LAYER CONSISTING ESSENTIALLY OF A MIXTURE IN THE PROPORTIONS OF (1) FROM 0.25 TO 1.0 PART BY WEIGHT OF GELATIN, (2) FROM 0.5 TO 6.0 PARTS BY WEIGHT OF RESINOUS TERPOLYMER CONSISTING OF (A) FROM 80 TO 90 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE UNITS AND VINYLIDENE CHLORIDE UNITS, (B) FROM 9 TO 19 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF UNITS OF A VINYL ESTER OF A SATURATED FATTY ACID CONTAINIG FROM 2 TO 4 CARBON ATOMS AND UNITS OF AN ALKY ACRYLATE WHEREIN THE ALKYKL GROUP CONTAINS FROM 1 TO 4 CARBON ATOMS, AND (C) FROM 0.5 TO 3.0 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE UNITS, ITACONIC ACID UNITS AND MAELIC ACID UNITS, AND (3) FROM 5 TO 30 PARTS BY WEIGHT OF A PHENOLIC COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
171 words
APHOTOGRAPHIC ELEMENT COMPRISING A FILM BASE OF AN ORIENTED CRYSTALLIZABLE POLYETHYLENE TEREPHTHALATE HAVING ON AT LEAST ONE SURFACE THEREOF A SUBSTRATUM LAYER CONSISTING ESSENTIALLY OF A MIXTURE IN THE PROPORTIONS OF (1) FROM 0.25 TO 1.0 PART BY WEIGHT OF GELATIN, (2) FROM 0.5 TO 6.0 PARTS BY WEIGHT OF RESINOUS TERPOLYMER CONSISTING OF (A) FROM 80 TO 90 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE UNITS AND VINYLIDENE CHLORIDE UNITS, (B) FROM 9 TO 19 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF UNITS OF A VINYL ESTER OF A SATURATED FATTY ACID CONTAINIG FROM 2 TO 4 CARBON ATOMS AND UNITS OF AN ALKY ACRYLATE WHEREIN THE ALKYKL GROUP CONTAINS FROM 1 TO 4 CARBON ATOMS, AND (C) FROM 0.5 TO 3.0 PERCENT BY WEIGHT OF UNITS SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE UNITS, ITACONIC ACID UNITS AND MAELIC ACID UNITS, AND (3) FROM 5 TO 30 PARTS BY WEIGHT OF A PHENOLIC COMPOUND HAVING THE GENERAL FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |