US2911449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of chlorinated hydrocarbons with a synergistic combination of a tertiary acetylenic monohydric alcohol and certain phenolic compounds
Assignee: Airco Inc
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Filing: 1956-02-08
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Granted: 1959-11-03
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Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 Charles O Herman
- 👤 William F Lehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:10
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A COMPOSITION OF MATTER COMPRISING A CHLORINATED HYDROCARBON SOLVENT AND A SMALL BUT STABILIZING AMOUNT OF A MIXTURE OF 3-METHYL-1-PHENTYN-3-OL AND A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESORCINOL, P-TERT-AMYL PHENOL, MONO-TERT-BUTYL-M-CRESOL, AND 5,5,8,8,-TETRAMETHRYL-5,6,7,8-TETRAHYDRO-2-NAPHTHOL.
Claim 2
Dependent Claim
36 words
A COMPOSITION OF MATTER COMPRISING A CHLORINATED HYDROCARBON SOLVENT AND A SMALL BUT STABILIZING AMOUNT OF A MIXTURE OF 3-METHYL-1-PHENTYN-3-OL AND A PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESORCINOL, P-TERT-AMYL PHENOL, MONO-TERT-BUTYL-M-CRESOL, AND 5,5,8,8,-TETRAMETHRYL-5,6,7,8-TETRAHYDRO-2-NAPHTHOL.
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) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |