Patent US7274906B1 successfully refreshed from Google Patents.
US3378433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Postformable decorative laminates
Assignee: Westinghouse Electric Corp
•
Filing: 1961-05-31
•
Granted: 1968-04-16
•
Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Salvatore E Palazzolo
- 👤 William C Hood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:50
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B31; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B29K; B29K2711/00; B29K2711/12; B29K2711/126; B29L; B29L2009/00; B29L2031/00; B29L2031/44; B29L2031/441; Y; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3602; Y10T442/3634
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMPOSITE DECORATIVE POSTFORMABLE RESINOUS LAMINATE COMPRISING (A) AN OVERLAY SHEET OF FIBROUS MATERIAL IMPREGNATED WITH A CLEAR, THERMOSET MELAMINE-ALDEHYDE RESIN, (B) A DECORATIVE LAYER COMPRISING A DECORATED SHEET OF FIBROUS MATERIAL IMPREGNATED WITH A THERMOSET MELAMINE-ALDEHYDE RESIN, AND (C) A BODY LAYER COMPRISING A PLURALITY OF SHEETS OF A STRETCHABLE, RELATIVELY DENSE, UNCREPED PAPER WEB FORMED OF WATER LAID, ADHERENT CELLULOSE FIBERS IN THEIR NATURAL PHYSICAL SHAPE IMPREGNATED WITH FROM ABOUT 28% TO ABOUT 100 % OF ITS WEIGHT OF A THERMOSET RESIN CONSISTING OF A MIXTURE OF A ROSIN-MODIFIED PHENOL-FORMALDEHYDE RESIN AND AN EPOXIDE RESIN DERIVED FROM THE REACTION OF BISPHENOL-A AND EPICHLOROHYDRIN, SAID THERMOSET RESIN CHARACTERIZED BY THERMAL STABILITY, DESIRABLE POST-FORMING PROPERTY, AND A POST-FORMING SOFTENING POINT RANGE OF FROM ABOUT 150*C. TO 170*C.
Claim 2
Dependent Claim
127 words
A COMPOSITE DECORATIVE POSTFORMABLE RESINOUS LAMINATE COMPRISING (A) AN OVERLAY SHEET OF FIBROUS MATERIAL IMPREGNATED WITH A CLEAR, THERMOSET MELAMINE-ALDEHYDE RESIN, (B) A DECORATIVE LAYER COMPRISING A DECORATED SHEET OF FIBROUS MATERIAL IMPREGNATED WITH A THERMOSET MELAMINE-ALDEHYDE RESIN, AND (C) A BODY LAYER COMPRISING A PLURALITY OF SHEETS OF A STRETCHABLE, RELATIVELY DENSE, UNCREPED PAPER WEB FORMED OF WATER LAID, ADHERENT CELLULOSE FIBERS IN THEIR NATURAL PHYSICAL SHAPE IMPREGNATED WITH FROM ABOUT 28% TO ABOUT 100 % OF ITS WEIGHT OF A THERMOSET RESIN CONSISTING OF A MIXTURE OF A ROSIN-MODIFIED PHENOL-FORMALDEHYDE RESIN AND AN EPOXIDE RESIN DERIVED FROM THE REACTION OF BISPHENOL-A AND EPICHLOROHYDRIN, SAID THERMOSET RESIN CHARACTERIZED BY THERMAL STABILITY, DESIRABLE POST-FORMING PROPERTY, AND A POST-FORMING SOFTENING POINT RANGE OF FROM ABOUT 150*C. TO 170*C.
References Cited (Backward Citations)
BE527994A
Cited
US2383430A
Cited
US2664377A
Cited
US2694028A
Cited
US2624245A
Cited
US2810674A
Cited
US2801198A
Cited
US3018206A
Cited
US3131116A
Cited
US3054428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |