US2981760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing trichloroethylene and stabilizing composition therefor
Assignee: Sicedison SpA
•
Filing: 1958-11-10
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Granted: 1961-04-25
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ferri Antonio
- 👤 Patron Germano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:23
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD FOR STABILIZING TRICHLOROETHYLENE BY INHIBITING THE ACID DECOMPOSITION THEREOF WHEN THE TRICHLOROETHYLENE IS USED AS A DEGREASING SOLVENT IN PROCESSES FOR DEGREASING METAL SURFACES, WHICH METHOD COMPRISES THE STEPS OF ADDING TO THE TRICHLOROETHYLENE A SYNERGETIC TERNARY MIXTURE COMPRISING OF DIISOPROPYL-AMINE, ALKYLP-HYDROXYANISOLE AND A LOWER ALKYLENE OXIDE, AND INTI MATELY MIXING SAID MIXTURE WITH THE TRICHLOROETHYLENE TO BE STABILIZED.
Claim 2
Independent Claim
61 words
A METHOD FOR STABILIZING TRICHLOROETHYLENE BY INHIBITING THE ACID DECOMPOSITION THEREOF WHEN THE TRICHLOROETHYLENE IS USED AS A DEGREASING SOLVENT IN PROCESSES FOR DEGREASING METAL SURFACES, WHICH METHOD COMPRISES THE STEPS OF ADDING TO THE TRICHLOROETHYLENE A SYNERGETIC TERNARY MIXTURE COMPRISING OF DIISOPROPYL-AMINE, ALKYLP-HYDROXYANISOLE AND A LOWER ALKYLENE OXIDE, AND INTI MATELY MIXING SAID MIXTURE WITH THE TRICHLOROETHYLENE TO BE STABILIZED.
References Cited (Backward Citations)
US2751421A
Cited
US2803676A
Cited
US2797250A
Cited
GB787726A
Cited
FR1161469A
Cited
US2818446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |