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US3257250A Expired / Lapsed US ⏱️ 0.0 years remaining

Acetylenic epoxy amino compounds and method of making the same

Assignee: ATK Launch Systems LLC
•
Filing: 1963-06-06
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Granted: 1966-06-21
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Expires: 1983-06-06
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Abstract

No abstract record available.

Inventors

  • 👤 Douald D Perry
  • 👤 Murray S Cohen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:26
CPC Classifications
C; C06; C06B; C06B43/00; C07; C07D; C07D303/00; C07D303/02; C07D303/36

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 8 words
AN ACETYLENIC EPOXY AMINO COMPOUND OF THE FORMULA
Claim 2
Dependent Claim 8 words
AN ACETYLENIC EPOXY AMINO COMPOUND OF THE FORMULA

References Cited (Backward Citations)

US1790042A Cited
GB675665A Cited
US2766285A Cited
US2901886A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-06-20 1969-12-20 1970-06-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-06-20 1973-12-20 1974-06-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-06-20 1977-12-20 1978-06-21 $7700.00 Window Closed / Lapsed

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