Patent US3317344A successfully refreshed from Google Patents.
US3317344A
Expired / Lapsed
US
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Antistatic photographic film
Assignee: GAF Chemicals Corp
•
Filing: 1963-09-27
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Granted: 1967-05-02
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Mackey E Scudder
- 👤 Abend Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PHOTOGRAPHIC ELEMENT COMPRISING A FILM SUPPORT COATED WITH A LAYER OF A HYDROPHOBIC COLLOID CONTAINING AN ANTISTATIC MIXTURE OF (A) A PHOSPHATE ESTER PREPARED BY REACTING ONE MOLE OF P2O5 WITH 2.2 TO 4.5 MOLES OF A NON-IONIC SURFACE-ACTIVE AGENT HAVING THE MOLECULAR CONFIGURATION OF A CONDENSATION PRODUCT OF AT LEAST ONE MOLE OF ETHYLENE OXIDE WITH ONE MOLE OF AN ALKYL PHENOL UNDER SUSTANTIALLY ANHYDROUS CONDITIONS AT A TEMPERATURE BELOW ABOUT 110*C. AND (B) A QUATENARY AMMONIUM COMPOUND CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
84 words
A PHOTOGRAPHIC ELEMENT COMPRISING A FILM SUPPORT COATED WITH A LAYER OF A HYDROPHOBIC COLLOID CONTAINING AN ANTISTATIC MIXTURE OF (A) A PHOSPHATE ESTER PREPARED BY REACTING ONE MOLE OF P2O5 WITH 2.2 TO 4.5 MOLES OF A NON-IONIC SURFACE-ACTIVE AGENT HAVING THE MOLECULAR CONFIGURATION OF A CONDENSATION PRODUCT OF AT LEAST ONE MOLE OF ETHYLENE OXIDE WITH ONE MOLE OF AN ALKYL PHENOL UNDER SUSTANTIALLY ANHYDROUS CONDITIONS AT A TEMPERATURE BELOW ABOUT 110*C. AND (B) A QUATENARY AMMONIUM COMPOUND CORRESPONDING TO THE 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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |