Patent US3294622A successfully refreshed from Google Patents.
US3294622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making laminated articles having reduced warping tendencies
Assignee: NAT PLASTIC PRODUCTS Co I
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Filing: 1963-04-18
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Granted: 1966-12-27
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Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 John T Wark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:01
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A METHOD OF MAKING SUBSTANTIALLY FLAT, POST-FORMABLE, PLANULAR LAMINATED ARTICLES COMPRISING THE STEPS OF CONSOLIDATING UNDER PRESSURE A PLURALITY OF SUPERPOSED SHEETS BETWEEN A PAIR OF HEATED PLATENS TO SUBSTANTIALLY COMPLETELY CURE THE RESINS THEREIN AND TO PRODUCE A POST-FORMABLE, PLANULAR DECORATIVE LAMINATE, THE SUPERPOSED SHEETS COMPRISING A TOP PROTECTIVE OVERLAY SHEET COMPOSED OF A CELLULOSIC MATERIAL AND A PATTERN SHEET THEREUNDER COMPOSED OF A CELLULOSIC MATERIAL HAVING A DESIGN PRINTED THEREON, SAID OVERLAY SHEET AND PATTERN SHEET BEING IMPREGNATED WITH A MELAMINE FORMALDEHYDE LAMINATING RESIN WHICH HAS BEEN PARTIALLY CURED THEREIN, A PLURALITY OF CORE SHEETS THEREUNDER OF CELLULOSIC MATERIAL IMPREGNATED WITH A PARTIALLY CURED PHENOL-FORMALDEHYDE LAMINATING RESIN AND A RELATIVELY WET BOTTOM PAPER SHEET UNIMPREGNATED @BY LAMINATING RESINS AND CONTAINING ABOUT 8% TO ABOUT 18% OF ADDED WATER BASED ON THE WEIGHT OF THE SHEETS, SAID BOTTOM SHEET BECOMING INTEGRAL WITH THE BOTTOM OF THE CORE DURING SAID CONSOLIDATION DUE TO THE FLOW OF RESIN FLOW THE CORE TO THE BOTTOM SHEET, WHICH FLOW IS ACCELERATED BY THE PRESENCE OF SAID ADDED WATER IN THE BOTTOM SHEET.
Claim 2
Independent Claim
179 words
A METHOD OF MAKING SUBSTANTIALLY FLAT, POST-FORMABLE, PLANULAR LAMINATED ARTICLES COMPRISING THE STEPS OF CONSOLIDATING UNDER PRESSURE A PLURALITY OF SUPERPOSED SHEETS BETWEEN A PAIR OF HEATED PLATENS TO SUBSTANTIALLY COMPLETELY CURE THE RESINS THEREIN AND TO PRODUCE A POST-FORMABLE, PLANULAR DECORATIVE LAMINATE, THE SUPERPOSED SHEETS COMPRISING A TOP PROTECTIVE OVERLAY SHEET COMPOSED OF A CELLULOSIC MATERIAL AND A PATTERN SHEET THEREUNDER COMPOSED OF A CELLULOSIC MATERIAL HAVING A DESIGN PRINTED THEREON, SAID OVERLAY SHEET AND PATTERN SHEET BEING IMPREGNATED WITH A MELAMINE FORMALDEHYDE LAMINATING RESIN WHICH HAS BEEN PARTIALLY CURED THEREIN, A PLURALITY OF CORE SHEETS THEREUNDER OF CELLULOSIC MATERIAL IMPREGNATED WITH A PARTIALLY CURED PHENOL-FORMALDEHYDE LAMINATING RESIN AND A RELATIVELY WET BOTTOM PAPER SHEET UNIMPREGNATED @BY LAMINATING RESINS AND CONTAINING ABOUT 8% TO ABOUT 18% OF ADDED WATER BASED ON THE WEIGHT OF THE SHEETS, SAID BOTTOM SHEET BECOMING INTEGRAL WITH THE BOTTOM OF THE CORE DURING SAID CONSOLIDATION DUE TO THE FLOW OF RESIN FLOW THE CORE TO THE BOTTOM SHEET, WHICH FLOW IS ACCELERATED BY THE PRESENCE OF SAID ADDED WATER IN THE BOTTOM SHEET.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |