Patent US5146123A successfully refreshed from Google Patents.
US3020176A
Expired / Lapsed
US
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Cast coated paper and method of making the same
Assignee: Mead Corp
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Filing: 1958-03-13
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Granted: 1962-02-06
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Expires: 1978-03-13
Abstract
No abstract record available.
Inventors
- 👤 James V Robinson
- 👤 Jr Earl B Brookbank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:37
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/62; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN THE MANUFACTURING OF CAST-SURFACES MINERAL COATED PAPER, THE STEP COMPRISING COAGULATING THE COATING WHILE STILL MOBILE AND FLUENT AND DEFORMABLE ON THE PAPER BY DIRECT CONTACT WITH A COAGULATING ELECTROLYTE TO FORM SAID COATING INTO A TOUGH DEFORMED GEL, CONCOMITANTLY INCORPORATING A WATER-SOLUABLE NON-IONIC SURFACTANT WITH SAID COAGULATING ELECTROLYTE WHICH IMPARTS SUBSTANTIALLY COMPLETE SEPERATION OF SAID COATONG FROM A CASTING SURFACE, AND THEREAFTER BRINGING SAID COATING INTO CONTACT WITH A CASTING SURFACE, SAID SULFACTANT BEING LIQUID ON SAID CASTING SURFACE AND IMPARTING SUBSTANTIALLY COMPLETE SEPARATION OF SAID COATING FROM SAID CASTING SURFACE.
Claim 2
Dependent Claim
93 words
IN THE MANUFACTURING OF CAST-SURFACES MINERAL COATED PAPER, THE STEP COMPRISING COAGULATING THE COATING WHILE STILL MOBILE AND FLUENT AND DEFORMABLE ON THE PAPER BY DIRECT CONTACT WITH A COAGULATING ELECTROLYTE TO FORM SAID COATING INTO A TOUGH DEFORMED GEL, CONCOMITANTLY INCORPORATING A WATER-SOLUABLE NON-IONIC SURFACTANT WITH SAID COAGULATING ELECTROLYTE WHICH IMPARTS SUBSTANTIALLY COMPLETE SEPERATION OF SAID COATONG FROM A CASTING SURFACE, AND THEREAFTER BRINGING SAID COATING INTO CONTACT WITH A CASTING SURFACE, SAID SULFACTANT BEING LIQUID ON SAID CASTING SURFACE AND IMPARTING SUBSTANTIALLY COMPLETE SEPARATION OF SAID COATING FROM SAID CASTING SURFACE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |