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US3440302A Expired / Lapsed US ⏱️ 0.0 years remaining

Room temperature curable copolymers of unsaturated organic polymers and mercaptosilanes

Assignee: Dow Silicones Corp
•
Filing: 1965-03-22
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Granted: 1969-04-22
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Expires: 1985-03-22
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Abstract

No abstract record available.

Inventors

  • 👤 John L Speier
  • 👤 Joseph W Keil
  • 👤 William G Gowdy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 22:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/548; C08G; C08G63/00; C08G63/68; C08G63/695; C08G63/6954; C08G63/91; C08G63/914; C08G63/918; C08J; C08J3/00; C08J3/24; C08L; C08L83/00; C08L83/04; C08G77/00; C08G77/04; C08G77/20; C08G77/42; C08G77/44

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3170940A Cited
US2812278A Cited
US3057791A Cited
US3312669A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-04-21 1972-10-21 1973-04-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-04-21 1976-10-21 1977-04-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-04-21 1980-10-21 1981-04-22 $7700.00 Window Closed / Lapsed

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