Patent US2982651A successfully refreshed from Google Patents.
US2982651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-static photographic film
Assignee: GAF Chemicals Corp
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Filing: 1958-02-26
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Granted: 1961-05-02
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Expires: 1978-02-26
Abstract
No abstract record available.
Inventors
- 👤 Mackey E Scudder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:12
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT CARRYING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER AND AN ANTI-STATIC LAYER OF A WATER PERMEABLE COLLOID, SAID LAYER CONTAINING AN ANTI-STATIC AMOUNT OF AN IMIDAZOLINIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FOLLOWING GENERAL FORMULAE:
Claim 2
Dependent Claim
45 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT CARRYING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER AND AN ANTI-STATIC LAYER OF A WATER PERMEABLE COLLOID, SAID LAYER CONTAINING AN ANTI-STATIC AMOUNT OF AN IMIDAZOLINIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FOLLOWING GENERAL FORMULAE:
References Cited (Backward Citations)
US2773068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |