Patent US3176273A successfully refreshed from Google Patents.
Patent US3732141A successfully refreshed from Google Patents.
US3732141A
Expired / Lapsed
US
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Pressure-sensitive record material
Assignee: Appvion LLC
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Filing: 1971-04-02
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Granted: 1973-05-08
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Expires: 1991-04-02
Abstract
Abstract PRESSURE-SENSITIVE RECORD MATERIAL WHICH INVOLVES THE MAKING OF A VANADIUM-CHELATE PRINT BY PRESSURE-RELEASE OF DROPLETS OF A SOLUTION OF AN ORGANIC CHELATING AGENT IN A HYDROPHOBIC LIQUID FOR COLOR DEVELOPMENT BY OIL-INSOLUBLE VANADIUM SALTS. THE PRING INTENSITY, RATE OF PRINT DEVELOPMENT, AND RESISTANCE OF THE PRINT TO FADING ARE OPTIMIZED BY ADDITION TO THE PRINT-DEVELOPING COAT OF DIFFERENT COMBINATIONS OF CALCIUM CARBONATE, SILICA GEL AND OIL-SOLUBLE PHENOL-ALDEHYDE RESINS.
Inventors
- 👤 B Brockett
- 👤 R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/132; B41M5/136; B41M5/1363; C; C08; C08G; C08G8/00; C08L; C08L61/00; C08L61/04; C08L61/06; C08L83/00; C08L83/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |