US3756814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olymer wherein the grafted moiety has mordant capability color diffusion transfer image receiving layer comprising a graft cop
Assignee: Polaroid Corp
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Filing: 1971-06-23
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Granted: 1973-09-04
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Expires: 1991-06-23
Abstract
Abstract A DIFFUSION TRANSFER PHOTOGRAPHIC PRODUCT INCLUDING AN IMAGE-RECEIVING ELEMENT COMPRISING AN ALKALINE SOLUTION PERMEABLE AND DYEABLE LAYER FOR RECEIVING A DYE IMAGE; SAID LAYER COMPRISES A GRAFT COPOLYMER WHEREIN THE GRAFTED MOIETY PROVIDES A MORDANT CAPABILITY.
Inventors
- 👤 Stanley F Bedell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
C; C08; C08F; C08F291/00; G; G03; G03C; G03C8/00; G03C8/42; G03C8/52; G03C8/56; Y; Y10; Y10S; Y10S430/00; Y10S430/142
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |