Patent US2892968A successfully refreshed from Google Patents.
US3201251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite film element
Assignee: Eastman Kodak Co
•
Filing: 1961-08-21
•
Granted: 1965-08-17
•
Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Gale F Nadeau
- 👤 James S Ruoff
- 👤 Crayton B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0075; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08K13/00; C08K13/02; C09; C09D; C09D133/00; C09D133/04; C09D133/06; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/835; G03C1/85; G03C1/91; C08J2367/00; C08J2367/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A PHOTOGRAPHIC FILM PRODUCT COMPRISING (1) A POLYESTER FILM SUPPORT, (2) AT LEAST ONE ANTISTATIC LAYER COMPRISING (A) A WATER-INSOLUBLE, ALKALI-SOLUBLE RESIN, (B) AN ANTISTATIC COMPOUND, AND (C) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESORCINOL, PYROCATECHOL, PYROGALLOL, HYDROQUINONE, ORCINOL, CHLOROESORCINOL, TRICHLOROACETIC ACID, ETHYLENE CARBONATE, CHLOROL HYDRATE, CHLORO THYMOL, AND ORTHO-CRESOL, SAID ANTIHALATION LAYER BEING
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |