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US3835089A Expired / Lapsed US ⏱️ 0.0 years remaining

Polylactone-modified linear polyesters and molding compositions containing the same

Assignee: General Electric Co
•
Filing: 1972-06-23
•
Granted: 1974-09-10
•
Expires: 1992-06-23
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Abstract

Abstract THERMOPLASTIC COMPOSITION COMPRISING (A) A POLY(1, 4-BUTYLENE TEREPHTHALATE) RESIN AND (B) A LINEAR ALIPHATIC POLYESTER RESIN OF THE GENERAL FORMULA -(O-(C(-R1)(-R2))M-CO)NWHEREIN R1 AND R2 ARE HYDROGEN OR ALKYL, M IS 2-5 AND N IS FROM 25 TO 15000. THE COMPOSITION OF RESINS (A) AND (B) CAN BE REINFORCED WITH FILLERS AND/OR RENDERED FLAME RETARDANT.

Inventors

  • 👤 D Fox
  • 👤 A Wambach

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:54
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02

Claims Analysis

Total Claims: 0
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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) 1977-09-09 1978-03-11 1978-09-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-09 1982-03-11 1982-09-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-09 1986-03-11 1986-09-10 $7700.00 Window Closed / Lapsed

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