US2524484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifreeze liquids
Assignee: Texaco Inc
•
Filing: 1948-12-04
•
Granted: 1950-10-03
•
Expires: 1968-12-04
Abstract
No abstract record available.
Inventors
- 👤 William R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:02
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN ANTI-FREEZE LIQUID ADAPTED TO BE ADDED TO WATER FOR CIRCULATING COOLING SYSTEMS CONTAINING METALLIC PARTS NORMALLY SUBJECT TO CORROSION CONSISTING ESSENTIALLY OF A WATER-MISCIBLE POLYHYDRIC ALCOHOL FREEZING POINT DEPRESSANT, WATER, AND A CORROSION INHIBITOR COMBINATION CONSISTING IN PERCENTAGE BY WEIGHT BASED ON THE POLYHYDRIC ALCOHOL OF 0.4-1.6% OF A TRIALKALI METAL PHOSPHATE, 0.3-0.6% OF AN ALKALI METAL SILICATE, AND 0.2-0.6% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTOBENZOTHIAZOLE AND AN ALKALI METAL SALT OF MERCAPTOBENOTHIAZOLE.
Claim 2
Dependent Claim
78 words
AN ANTI-FREEZE LIQUID ADAPTED TO BE ADDED TO WATER FOR CIRCULATING COOLING SYSTEMS CONTAINING METALLIC PARTS NORMALLY SUBJECT TO CORROSION CONSISTING ESSENTIALLY OF A WATER-MISCIBLE POLYHYDRIC ALCOHOL FREEZING POINT DEPRESSANT, WATER, AND A CORROSION INHIBITOR COMBINATION CONSISTING IN PERCENTAGE BY WEIGHT BASED ON THE POLYHYDRIC ALCOHOL OF 0.4-1.6% OF A TRIALKALI METAL PHOSPHATE, 0.3-0.6% OF AN ALKALI METAL SILICATE, AND 0.2-0.6% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTOBENZOTHIAZOLE AND AN ALKALI METAL SALT OF MERCAPTOBENOTHIAZOLE.
References Cited (Backward Citations)
US2038724A
Cited
US2071482A
Cited
US2080422A
Cited
US2147149A
Cited
US2373570A
Cited
US2384553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |