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US2432891A Expired / Lapsed US ⏱️ 0.0 years remaining

Silicon containing resins and method of producing same

Assignee: Arthur D Little Inc
•
Filing: 1943-03-09
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Granted: 1947-12-16
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Expires: 1963-03-09
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Abstract

No abstract record available.

Inventors

  • 👤 Laurence R B Hervey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 16:09
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2258218A Cited
US2258220A Cited
US2371068A Cited
US2371050A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1950-12-15 1951-06-16 1951-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1954-12-15 1955-06-16 1955-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1958-12-15 1959-06-16 1959-12-16 $7700.00 Window Closed / Lapsed

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