US3584391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying ei ement,chemical composition and process
Assignee: Eastman Kodak Co
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Filing: 1969-10-31
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Granted: 1971-06-15
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Expires: 1989-10-31
Abstract
Abstract A LIQUID PERMEABLE, DRYING ELEMENT, SUCH AS A THIN COATING, CONTAINING AN ORGANIC POLYMERIC DESICCANT CROSSLINKED TO A POLYMER, FOR EXAMPLE CROSS-LINKED TO A SUPPORT COMPRISING A POLYMER, WHICH CAN BE THE SAME AS THE ORGANIC DESICCANT OR DIFFERENT FROM THE ORGANIC, POLYMERIC DESICCANT, RAPIDLY REMOVES DIFFUSIBLE LIQUID, ESPECIALLY WATER, FROM A PERMEABLE SOLID. A DRYING ELEMENT, AS DESCRIBED, CAN BE USEFUL FOR REMOVING DIFFUSIBLE LIQUID FROM LAYERS OF A PHOTOGRAPHIC ELEMENT SUCH AS PHOTOGRAPHIC FILM.
Inventors
- 👤 Robert H Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/16; C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3322; C08L; C08L71/00; C08L71/02
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |