US3573236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper coating compositions and method of their application
Assignee: EIDP Inc
•
Filing: 1968-02-08
•
Granted: 1971-03-30
•
Expires: 1988-02-08
Abstract
Abstract PAPERS COATED WITH AN AQUEOUS DISPERSION CONTAINING, PER 100 PARTS OF PIGMENT, 1 TO 3 PARTS OF POLYVINYL ALCOHOL, 7 TO 12 PARTS OF A SYNTHETIC POLYMER, 0.5 TO 1.5 PARTS OF GLYOXAL AND 0.05 TO 0.5 PART OF A WATER-RETENTION AID, PROVIDED THE RATIO OF POLYVINYL ALCOLHOL TO SYNTHETIC POLYMER IS NO GREATER THAN 0.35, HAVE IMPROVED PRINTABILITY CHARACTERISTICS WHILE THE OPTICAL AND STRENGTH PROPERTIES ARE NOT ADVERSELY AFFECTED.
Inventors
- 👤 David Osher Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:11
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/56; D21H19/60; C; C08; C08L; C08L29/00; C08L29/02; C08L29/04; C08L57/00; D21H19/52; D21H19/58; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |