US3238136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifreeze composition
Assignee: Texaco Inc
•
Filing: 1963-07-01
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Granted: 1966-03-01
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 John G Willard
- 👤 Gayle D Edwards
- 👤 Philip H Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:12
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ANTIFREEZE COMPOSITION ADAPTED TO BE ADDED TO WATER CONSISTING ESSENTIALLY OF A WATER SOLUBLE LIQUID ALCOHOL FREEZING POING DEPRESSANT, BETWEEN ABOUT 0.1 AND 3 WT. PERCENT OF SODIUM METABORATE, ABOUT 0.05 TO 2.0 WT. PERCENT OF SODIUM METAARSENITE, ABOUT 0.01 TO ABOUT 1.0 WT PERCENT OF SODIUM MERCAPTOBENZOTHIAZOLE AND ABOUT 0.01 TO ABOUT 1 WT. PERCENT OF 2-MERCAPTOTHIAZOLINE, BASED ON THE WEIGHT OF THE LIQUID ALCOHOL FREEZING POINT DEPRESSANT.
Claim 2
Dependent Claim
70 words
AN ANTIFREEZE COMPOSITION ADAPTED TO BE ADDED TO WATER CONSISTING ESSENTIALLY OF A WATER SOLUBLE LIQUID ALCOHOL FREEZING POING DEPRESSANT, BETWEEN ABOUT 0.1 AND 3 WT. PERCENT OF SODIUM METABORATE, ABOUT 0.05 TO 2.0 WT. PERCENT OF SODIUM METAARSENITE, ABOUT 0.01 TO ABOUT 1.0 WT PERCENT OF SODIUM MERCAPTOBENZOTHIAZOLE AND ABOUT 0.01 TO ABOUT 1 WT. PERCENT OF 2-MERCAPTOTHIAZOLINE, BASED ON THE WEIGHT OF THE LIQUID ALCOHOL FREEZING POINT DEPRESSANT.
References Cited (Backward Citations)
US2861954A
Cited
US3046230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |