Patent US1131068A successfully refreshed from Google Patents.
Patent US2943954A successfully refreshed from Google Patents.
US2943954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting surface for producing castsurfaced mineral coated paper
Assignee: Mead Corp
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Filing: 1958-02-10
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Granted: 1960-07-05
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Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 James V Robinson
- 👤 Ivan E Shaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:27
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF PRODUCING HIGHLY GLOSSED FINISH CASTSURFACED, MINERAL COATED PAPER COMPRISING APPLYING TO THE SURFACE OF A WEB OF PAPER A RELATIVELY FLUIDIC CAST COATING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS PIGMENT-ADHESIVE SUSPENSION, SAID COATING COMPOSITION HAVING FROM ABOUT 45% TO ABOUT 65% BY WEIGHT OF NON-VOLATILE SOLIDS BRINGING THE COATED SURFACE OF THE PAPER INTO CONTACT WITH A PASSIVATED CHROMIUM CASTING SURFACE WHILE SAID COATING IS STILL FLUENT ON THE PAPER, AND MAINTAINING THE PASSIVATED SURFACE BY THE ADDITION OF A PROTECTIVE AGENT IN SAID CAST COATING COMPOSITION.
Claim 2
Independent Claim
90 words
A METHOD OF PRODUCING HIGHLY GLOSSED FINISH CASTSURFACED, MINERAL COATED PAPER COMPRISING APPLYING TO THE SURFACE OF A WEB OF PAPER A RELATIVELY FLUIDIC CAST COATING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS PIGMENT-ADHESIVE SUSPENSION, SAID COATING COMPOSITION HAVING FROM ABOUT 45% TO ABOUT 65% BY WEIGHT OF NON-VOLATILE SOLIDS BRINGING THE COATED SURFACE OF THE PAPER INTO CONTACT WITH A PASSIVATED CHROMIUM CASTING SURFACE WHILE SAID COATING IS STILL FLUENT ON THE PAPER, AND MAINTAINING THE PASSIVATED SURFACE BY THE ADDITION OF A PROTECTIVE AGENT IN SAID CAST COATING COMPOSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |