US3713834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric binders for photographic emulsions
Assignee: Polaroid Corp
•
Filing: 1971-07-06
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Granted: 1973-01-30
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Expires: 1991-07-06
Abstract
Abstract A PHOTOSENSITIVE SILVER HALIDE EMULSION WHEREIN THE EMULSION BINDER COMPRISES AN AMINE-DIAMIDE POLYMER OR COPOLYMER.
Inventors
- 👤 M Fitzgerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |