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US3423922A Expired / Lapsed US ⏱️ 0.0 years remaining

Twisting fibrous strands

Assignee: Owens Corning
•
Filing: 1967-06-19
•
Granted: 1969-01-28
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Expires: 1987-06-19
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Abstract

No abstract record available.

Inventors

  • 👤 Roy E Smith

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:02
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/30; D01H13/306; D01H1/00; D01H1/10; D01H1/105; D01H1/106

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1140497A Cited
US1123239A Cited
US1418136A Cited
US1647303A Cited
US2042529A Cited
US2671304A Cited
US3014337A Cited
US3111804A Cited
US3145524A Cited
US3295306A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-01-28 1972-07-29 1973-01-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-01-28 1976-07-29 1977-01-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-01-28 1980-07-29 1981-01-28 $7700.00 Window Closed / Lapsed

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