Patent US3124504A successfully refreshed from Google Patents.
US3124504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gloss finishing of uncoated paper
Assignee: —
•
Filing: 1960-04-04
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Granted: 1964-03-10
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Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:17
CPC Classifications
D; D21; D21G; D21G1/00; D21G1/02; D21G1/0226; D21F; D21F3/00; D21F3/02; D21F3/04; D21F5/00; D21F5/02; D21F9/00; D21F9/02; D21G1/0073; D21G1/0093; D21H; D21H25/00; D21H25/08; D21H25/12; D21H25/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
THE METHOD OF MAKING A FINISHED GLOSSED PAPER WEB COMPRISING CONTINUOUSLY FORMING A TRAVELING PAPER WEB ON A FOURDRINIER SECTION OF A PAPER MACHINE, REMOVING MOISTURE FROM THE WEB IN A PRESS SECTION AND A DRYER SECTION OF THE MACHINE TO A DRYNESS OF LESS THAN 35% MOISTURE AND IMMEDIATELY PASSING THE WEB THROUGH A HIGH PRESSURE NIP FORMED BETWEEN A HEATED SMOOTH NON-RESILIENT ROLL HEATED TO A TEMPERATURE BETWEEN A LOWER LIMIT OF 220*F. AND AN UPPER LIMIT UP TO THE DECOMPOSITION POINT OF THE WEB AND A ROLL HAVING A SURFACE OF A RESILIENT MATERIAL WITH A HIGH HARDNESS FOR HEATING THE WEB IN THE NIP, AND APPLYING PRESSURE TO THE HEATED WEB IN THE NIP IN THE RANGE OF 250 POUNDS PER SQUARE INCH TO 2400 POUNDS PER SQUARE INCH TO PLASTICIZE THE SURFACE FIBERS OF THE WEB AND COALESCE THE SURFACE FIBERS AND TO FURTHER EFFECT DRYING.
References Cited (Backward Citations)
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Cited
US2096973A
Cited
US2313497A
Cited
US2419207A
Cited
US2746878A
Cited
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Cited
US2999787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |