US2587833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for splicing paper
Assignee: Shawinigan Chemicals Ltd
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Filing: 1950-11-24
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Granted: 1952-03-04
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Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Leo M Germain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:05
CPC Classifications
B; B31; B31F; B31F5/00; B31F5/06; B31F5/08; B65; B65H; B65H21/00; Y; Y10; Y10T; Y10T428/00; Y10T428/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS FOR SPLICING PAPER COMPRISING (1) PLACING BETWEEN OVERLAPPING EDGES OF THE PIECES OF PAPER TO BE SPLICED A SELF-SUPPORTING FILM OF PLASTICIZED POLYVINYL ALCOHOL-ACETATE RESIN, SAID RESIN CONTAINING 45% TO 65% BY WEIGHT OF POLYVINYL ACETATE AND BEING MADE FROM POLYVINYL ACETATE OF VISCOSITY, AS DEFINED HEREIN, WITHIN THE RANGE FROM 4 TO 20 CENTIPOISES, SAID FILM CONTAINING 8% TO 30% BY WEIGHT OF A WATER SOLUBLE PLASTICIZER HAVING AT LEAST THE OH GROUP PER MOLECULE, AND (2) SUBJECTING THE OVERLAPPING EDGES TO HEAT AND PRESSURE WHEREBY A SPLICE IS FORMED WHICH WILL DISINTEGRATE COMPLETELY IN A PAPER STOCK BEATER.
Claim 2
Dependent Claim
102 words
A PROCESS FOR SPLICING PAPER COMPRISING (1) PLACING BETWEEN OVERLAPPING EDGES OF THE PIECES OF PAPER TO BE SPLICED A SELF-SUPPORTING FILM OF PLASTICIZED POLYVINYL ALCOHOL-ACETATE RESIN, SAID RESIN CONTAINING 45% TO 65% BY WEIGHT OF POLYVINYL ACETATE AND BEING MADE FROM POLYVINYL ACETATE OF VISCOSITY, AS DEFINED HEREIN, WITHIN THE RANGE FROM 4 TO 20 CENTIPOISES, SAID FILM CONTAINING 8% TO 30% BY WEIGHT OF A WATER SOLUBLE PLASTICIZER HAVING AT LEAST THE OH GROUP PER MOLECULE, AND (2) SUBJECTING THE OVERLAPPING EDGES TO HEAT AND PRESSURE WHEREBY A SPLICE IS FORMED WHICH WILL DISINTEGRATE COMPLETELY IN A PAPER STOCK BEATER.
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) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |