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Patent US3597265A successfully refreshed from Google Patents.
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US3597265A Expired / Lapsed US ⏱️ 0.0 years remaining

Fiber lubricants

Assignee: Millennium Petrochemicals Inc
•
Filing: 1968-05-06
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Granted: 1971-08-03
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Expires: 1988-05-06
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Abstract

Abstract FIBER LUBRICANTS WHICH COMPRISE PARTIALLY AMIDATED POLYALKYLENIMINES ARE PROVIDED. EXEMPLARY OF THE LUBRICANT COMPOUNDS DISCLOSED IS THE REACTION PRODUCT OF A MIXTURE OF C2 TO ABOUT C18 FATTY ACIDS WITH A POLYETHYLENIMINE HAVING A MOLECULAR WEIGHT OF ABOUT 1200. THE REACTION PRODUCT HAS A RESIDUAL AMINE VALUE OF FROM ABOUT 300 TO 400.

Inventors

  • 👤 Kenneth T Mecklenborg
  • 👤 Kenneth H Pettengill

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 09:55
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/61; C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/255; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; D06M13/00; D06M13/322; D06M13/402; D06M13/405; D06M7/00; D06M2200/00; D06M2200/40

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-08-02 1975-02-01 1975-08-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-08-02 1979-02-01 1979-08-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-08-02 1983-02-01 1983-08-03 $7700.00 Window Closed / Lapsed

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