Patent US5336234A successfully refreshed from Google Patents.
Patent JPS6055408A successfully refreshed from Google Patents.
US3028258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a high finish on paper products
Assignee: Lowe Paper Co
•
Filing: 1956-03-27
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Granted: 1962-04-03
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 John C Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/08; D21H25/12; D21H25/14; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD OF PRODUCING HIGH GLOSS, SMOOTH FINISH FLEXIBLE AND PRINTABLE PAPER WHICH COMPRISES CONTAINING PAPER WITH AN AQUEOUS COATING COMPOSITION CONTAINING AT LEAST 70% DRY PIGMENT, 85% OF WHOSE PARTICLES ARE BELOW TWO MICRONS IN SIZE, AND CONTAINING A THERMOPLASTIC RESIN COMPONENT, SAID COATING COMPOSITION WHEN DRIED BEING CAPABLE OF PLASTIC FLOW WHEN PRESSURE AND TEMPERATURE ARE APPLIED AND HARDENING WHEN PRESSURE IS RELEASED DRYING SAID COATED PAPER TO A MOISTURE CONTENT OF FROM ABOUT 5% TO 12% BASED ON THE TOTAL WEIGHT OF PAPER AND MOLDING SAID DRIED COATING WHILE SOLID OR SEMISOLID STATE AGAINST A SMOOTH SURFACE AT A MOLDING TEMPERATURE WITHIN THE RANGE OF 5*F. TO 35*F. ABOVE THE SECOND ORDER TRANSITION TEMPERATURE OF THE THERMOPLASTIC RESIN EMPLOYED AND AT SUFFICIENT PRESSURE TO CAUSE PLASTIC FLOW IN SOLID OR SEMI-SOLID STATE OF SAID COATING, SAID TEMPERATURE AND PRESSURE BEING MAINTAINED FOR A SUFFICIENT TIME TO GIVE SAID COATED PAPER A HIGH GLOSS SMOOTH FINISH, SAID COATED PAPER BEING SUJECTED TO A POLISHING OPERTION SUBSEQUENT TO SAID DRYING STEP.
Claim 2
Independent Claim
172 words
A METHOD OF PRODUCING HIGH GLOSS, SMOOTH FINISH FLEXIBLE AND PRINTABLE PAPER WHICH COMPRISES CONTAINING PAPER WITH AN AQUEOUS COATING COMPOSITION CONTAINING AT LEAST 70% DRY PIGMENT, 85% OF WHOSE PARTICLES ARE BELOW TWO MICRONS IN SIZE, AND CONTAINING A THERMOPLASTIC RESIN COMPONENT, SAID COATING COMPOSITION WHEN DRIED BEING CAPABLE OF PLASTIC FLOW WHEN PRESSURE AND TEMPERATURE ARE APPLIED AND HARDENING WHEN PRESSURE IS RELEASED DRYING SAID COATED PAPER TO A MOISTURE CONTENT OF FROM ABOUT 5% TO 12% BASED ON THE TOTAL WEIGHT OF PAPER AND MOLDING SAID DRIED COATING WHILE SOLID OR SEMISOLID STATE AGAINST A SMOOTH SURFACE AT A MOLDING TEMPERATURE WITHIN THE RANGE OF 5*F. TO 35*F. ABOVE THE SECOND ORDER TRANSITION TEMPERATURE OF THE THERMOPLASTIC RESIN EMPLOYED AND AT SUFFICIENT PRESSURE TO CAUSE PLASTIC FLOW IN SOLID OR SEMI-SOLID STATE OF SAID COATING, SAID TEMPERATURE AND PRESSURE BEING MAINTAINED FOR A SUFFICIENT TIME TO GIVE SAID COATED PAPER A HIGH GLOSS SMOOTH FINISH, SAID COATED PAPER BEING SUJECTED TO A POLISHING OPERTION SUBSEQUENT TO SAID DRYING STEP.
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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) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |