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US2476819A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of producing gr-s latex containing carbon black

Assignee: Bridgestone Firestone Inc
•
Filing: 1945-04-30
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Granted: 1949-07-19
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Expires: 1965-04-30
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Abstract

No abstract record available.

Inventors

  • 👤 Rexford E Draman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:18
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1911672A Cited
US2367805A Cited
US2394025A Cited
US2430590A Cited
US2401346A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-07-18 1953-01-17 1953-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-07-18 1957-01-17 1957-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-07-18 1961-01-17 1961-07-19 $7700.00 Window Closed / Lapsed

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