Patent US2273956A successfully refreshed from Google Patents.
US2876263A
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Polyoxyalkylene cyclic hydrocarbon substituted amines and their ammonium salt derivatives
Assignee: Universal Oil Products Co
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Filing: 1952-12-31
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Granted: 1959-03-03
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Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Mark Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:21
CPC Classifications
C; C07; C07C; C07C217/00; C07C217/02; C07C217/04; C07C217/06; C07C217/08; C10; C10M; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A MONO-AMINE COMPOUND HAVING ITS AMINO NITROGEN ATOM SUBSTITUTED BY A CYCLIC HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF BENZENE AND CYCLOHEXYL RADICALS SAID CYCLIC HYDROCARBON RADICAL HAVING A SINGLE NUCLEAR ALKYL SUBSTITUENT CONATINING FROM 6 TO 20 CARBON ATOMS, SAID COMPOUND BEING FURTHER CHARACTERIZED IN HAVING FROM 1 TO 2 OMEGA-HYDROXYALKYL-POLYOXYALKYLENE RADICALS ATTACHED DIRECTLY TO THE AMINO NITORGEN ATOM THROUGH A CARBONATOM LINKAGE, SAID COMPOUND CONTAINING AN AVERAGE TOTAL NUMBER OF FROM 6 TO ABOUT 34 OXYALKYLENE UNITS PER MOLECULE, EACH OXYALKYLENE UNIT OF WHICH CONTAINS FROM 2 TO 3 CARBON ATOMS.
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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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |