US3134834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dimensionally stabilizing a paper-plastic laminate
Assignee: International Paper Co
•
Filing: 1960-09-07
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Granted: 1964-05-26
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Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 Lawrence S Tobias
- 👤 Owen D Mosher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:51
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/14; B; B32; B32B; B32B27/00; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; D21H27/30; D21H27/32; D21H27/34; D21H27/36; D21H17/00; D21H17/63; D21H23/00; D21H23/02; D21H23/22; D21H23/46; D21H23/52; D21H23/64; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN THE PRODUCTION OF DIMENSIONALLY STABLE PAPER HAVING INK RECEPTIVENESS AND ADAPTED FOR USE IN THE FORM OF TABULATING CARDS, MAPS, CHARTS, AND GRAPHS, A FIRST STEP OF IMMERSING IN WATER A PAPER LAMINATE CONSISTING OF TWO OUTER SHEETS OF PAPER HEAT-SEALED TO A POLYSTRYRENE CORE UNDER TENSION, THE CORE BEING FROM ABOUT 37% TO 73% BY WEIGHT OF THE LAMINATE, AT FROM ABOUT ROOM TEMPERATURE TO 65*F. FOR FROM ABOUT 3 TO 10 SECONDS; A SECOND STEP OF ALLOWING THE WET PAPER LAMINATE TO STAND FOR FROM ABOUT 15 MINUTES TO 24 HOURS; AND, A THIRD STEP OF DRYING THE RESULTING PAPER LAMINATE IN A TUNNEL DRYER AT FROM ABOUT 100*F. TO 225*F. FOR FROM ABOUT 20 TO 50 SECONDS.
Claim 2
Dependent Claim
121 words
IN THE PRODUCTION OF DIMENSIONALLY STABLE PAPER HAVING INK RECEPTIVENESS AND ADAPTED FOR USE IN THE FORM OF TABULATING CARDS, MAPS, CHARTS, AND GRAPHS, A FIRST STEP OF IMMERSING IN WATER A PAPER LAMINATE CONSISTING OF TWO OUTER SHEETS OF PAPER HEAT-SEALED TO A POLYSTRYRENE CORE UNDER TENSION, THE CORE BEING FROM ABOUT 37% TO 73% BY WEIGHT OF THE LAMINATE, AT FROM ABOUT ROOM TEMPERATURE TO 65*F. FOR FROM ABOUT 3 TO 10 SECONDS; A SECOND STEP OF ALLOWING THE WET PAPER LAMINATE TO STAND FOR FROM ABOUT 15 MINUTES TO 24 HOURS; AND, A THIRD STEP OF DRYING THE RESULTING PAPER LAMINATE IN A TUNNEL DRYER AT FROM ABOUT 100*F. TO 225*F. FOR FROM ABOUT 20 TO 50 SECONDS.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |