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US2847786A Expired / Lapsed US ⏱️ 0.0 years remaining

Composite firearm barrel comprising glass fibers

Assignee: Olin Corp
•
Filing: 1955-02-07
•
Granted: 1958-08-19
•
Expires: 1975-02-07
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Abstract

No abstract record available.

Inventors

  • 👤 James C Hartley
  • 👤 Harry I Day
  • 👤 John L Wilson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 13:45
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/02; Y; Y10; Y10S; Y10S138/00; Y10S138/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US521911A Cited
US749402A Cited
US727766A Cited
US1181704A Cited
US2467999A Cited
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US2614058A Cited
US2744043A Cited
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US2809762A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-08-18 1962-02-17 1962-08-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-08-18 1966-02-17 1966-08-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-08-18 1970-02-17 1970-08-19 $7700.00 Window Closed / Lapsed

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