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US2991215A Expired / Lapsed US ⏱️ 0.0 years remaining

Laminated panels and method of manufacture

Assignee: Polymer Industries Inc
•
Filing: 1956-05-29
•
Granted: 1961-07-04
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Expires: 1976-05-29
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Abstract

No abstract record available.

Inventors

  • 👤 Howard L Kane
  • 👤 Konigsberg Moses

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 06:24
CPC Classifications
B; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B32; B32B; B32B27/00; B44C5/043; D; D21; D21J; D21J1/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/31504; Y10T428/31942; Y10T442/00; Y10T442/50; Y10T442/51; Y10T442/54

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 111 words
A METHOD OF PRODUCING A LAMINATED PANEL ASSEMBLY WHICH CONSISTS IN THE STEPS OF PLACING A LAYER OF MELAMINE RESIN IMPREGNATED OVERLAY PAPER OVER A DECORATIVE SHEET HAVING 40% TO 50% TRANSPARENT MELAMINE FORMALDEHYDE RESIN INCORPORATED THEREIN, MOUNTING SAID OVERLAY PAPER AND DECORATIVE SHEET ON A COMPRESSIBLE PRESSURE EQUALIZING LAYER OF FIBROUS FELTED CELLULOSIC MATERIAL, SAID LAYER BEING APPROXIMATELY 1/4 INCH IN THICKNESS AND HAVING FROM 3% TO 50% RESINOUS MATERIAL INCORPORATED THEREIN OF WHICH APPROXIMATELY 7% TO 10% IS THERMOSETTING RESIN AND THE REMAINDER THERMOPLASTIC RESINS, AND SUBJECTING THE PANEL ASSEMBLY TO NOT MORE THAN 350*F. HEAT AND NOT MORE THAN 400 P.S.I. PRESSURE TO FORM A UNITARY LAMINATED STRUCTURE.

References Cited (Backward Citations)

US1454845A Cited
US1597539A Cited
US1697182A Cited
US2084081A Cited
US2459739A Cited
US2552124A Cited
US2562711A Cited
US2550465A Cited
US2564695A Cited
US2822026A Cited
US2801198A Cited
US2857302A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-07-03 1965-01-02 1965-07-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-07-03 1969-01-02 1969-07-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-07-03 1973-01-02 1973-07-04 $7700.00 Window Closed / Lapsed

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