US3511660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antihalation backing for photographic silver halide recording elements
Assignee: Eastman Kodak Co
•
Filing: 1966-10-18
•
Granted: 1970-05-12
•
Expires: 1986-10-18
Abstract
No abstract record available.
Inventors
- 👤 Guy William Willis Stevens
- 👤 Claude Masson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB583508A
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US2462534A
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US2448507A
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US2694622A
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US2968582A
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US3234023A
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US3163533A
Cited
US3340062A
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US3247127A
Cited
US3269252A
Cited
US3222178A
Cited
US3152252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |