US3597265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber lubricants
Assignee: Millennium Petrochemicals Inc
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Filing: 1968-05-06
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Granted: 1971-08-03
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Expires: 1988-05-06
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 04:05
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
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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 |