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US3832153A Expired / Lapsed US ⏱️ 0.0 years remaining

Adjustable form for shaping sheets of plastic material,in particular,glass

Assignee: Saint Gobain Industries SA
•
Filing: 1972-05-15
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Granted: 1974-08-27
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Expires: 1992-05-15
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Abstract

Abstract An adjustable form for press-shaping sheets of plastic material such as hot glass, and comprising a plurality of straight bars disposed in parallel, side-by-side relation, each mounted individually for translation with respect to the other. Means are provided for unitizing the bars in desired relation wherein their free surfaces conjointly define or determine a surface of desired form or radius of curvature, usable as one of two complementary forms between which the sheet may be shaped.

Inventors

  • 👤 A Bezombes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 04:13
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/0307; C03B23/0302; C03B23/033

Claims Analysis

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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) 1977-08-26 1978-02-25 1978-08-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-26 1982-02-25 1982-08-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-26 1986-02-25 1986-08-27 $7700.00 Window Closed / Lapsed

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