US3629113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating composition
Assignee: DSM Copolymer Inc
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Filing: 1969-04-24
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Granted: 1971-12-21
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Expires: 1989-04-24
Abstract
Abstract A LUBRICANT TO PREVENT FOULING OF EQUIPMENT CONTACTED BY POLYMERIZABLE ETHYLENICALLY UNSATURATED HYDROCARBONS AND/OR ETHYLENICALLY UNSATURATED ESTERS IN WHICH THE LUBRICATING COMPOSITION CONTAINS A SOLUBLE N-NITROSO ARYL HYDROXYL AMINE AND PREFERABLY AN OIL SOLUBLE SALT THEREOF.
Inventors
- 👤 Robert A Gerlicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:00
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2207/00; C10M2207/08; C10M2215/00; C10M2215/02; C10M2215/06; C10M2229/00; C10M2229/04; C10M2229/05; C10M2229/051; C10N; C10N2010/00; C10N2010/08; C10N2010/10; C10N2010/12
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |