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US3433853A Expired / Lapsed US ⏱️ 0.0 years remaining

Polyolefin compositions containing a basic polyamide dye site additive

Assignee: Hercules LLC
•
Filing: 1966-05-25
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Granted: 1969-03-18
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Expires: 1986-05-25
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Abstract

No abstract record available.

Inventors

  • 👤 Ralph H Earle
  • 👤 Alfred C Schmalz
  • 👤 Charles A Soucek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:57
CPC Classifications
C; C08; C08L; C08L77/00; C08L23/00; C08L23/02; C08L23/10; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/16; C08K5/17

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3320334A Cited
US3161608A Cited
US3326826A Cited
US3331888A Cited
US3317633A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-03-17 1972-09-16 1973-03-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-03-17 1976-09-16 1977-03-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-03-17 1980-09-16 1981-03-18 $7700.00 Window Closed / Lapsed

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