US2548575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mordanted imbibition dye-printing blank
Assignee: Eastman Kodak Co
•
Filing: 1948-10-15
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Granted: 1951-04-10
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Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Walter J Weyerts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:33
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/25; Y; Y10; Y10S; Y10S430/00; Y10S430/142
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
A PREMORDANTED DYE IMBIBITION BLANK COMPRISING A SUPPORT HAVING THEREON A LAYER OF HYDROPHILIC COLLOID CONTAINING A QUATERNIZED POLYVINYL PYRIDINE DYE-MORDANT AND IN ONLY THE OUTER STRATUM OF SAID LAYER A POLYMERIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF WATER-SOLUBLE POLYMERIZED ACRYLIC ACIDS, MALEIC ANHYDRIDE-VINYL ESTER CO-POLYMERS AND CARBOXY METHYL CELLULOSES AND ALKALI SOLUBLE ACRYLIC ESTER-ACRYLIC ACID COPOLYMERS, POLYVINYL PHTHALATES AND CELLULOSE PHTHALATES.
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |