Patent US2950290A successfully refreshed from Google Patents.
US2950290A
Expired / Lapsed
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Stabilized aromatic carbocyclic amines
Assignee: GAF Chemicals Corp
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Filing: 1956-06-21
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Granted: 1960-08-23
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Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Hort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:38
CPC Classifications
C; C09; C09B; C09B11/00; C09B11/04; C09B11/10; C09B11/12; C09B11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN AROMATIC CARBOCYCLIC COMPOUND, SELECTED FROM THE GROUP CONSISTING OF AROMATIC CARBOCYCLIC AMINES AND POLYAMINES STABILIZED AGAINST DETERIORATION BY STEEL BY HAVING INCORPORATED THEREWITH FROM 0.01 TO 1.0 PART BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID AROMATIC CARBOCYCLIC COMPOUND OF AN ORGANIC PHOSPHITE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
49 words
AN AROMATIC CARBOCYCLIC COMPOUND, SELECTED FROM THE GROUP CONSISTING OF AROMATIC CARBOCYCLIC AMINES AND POLYAMINES STABILIZED AGAINST DETERIORATION BY STEEL BY HAVING INCORPORATED THEREWITH FROM 0.01 TO 1.0 PART BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID AROMATIC CARBOCYCLIC COMPOUND OF AN ORGANIC PHOSPHITE HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |