US2803603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange compositions
Assignee: Commercial Solvents Corp
•
Filing: 1954-08-23
•
Granted: 1957-08-20
•
Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Meighen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:24
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ANTIFREEZE COMPOSITION COMPRISING A WATER-SOLUBLE ALCOHOL AS THE CHIEF NON-AQUEOUS INGREDIENT AND AN ANTICORROSION AGENT CONTAINING AS THE ESSENTIAL ANTICORROSIVE COMPONENTS FROM ABOUT 0.4% TO ABOUT 80% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZOTRIAZOLE, ALKALI METAL SALTS OF BENZOTRIAZOLE, AMMONIUM SALT OF BENZOTRIAZOLE, AND MIXTURES THEREOF AND FROM ABOUT 99.6% TO ABOUT 20% OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL METABORATES, ALKALI METAL TERABORATES, CALCIUM BORATE, AND MIXTURE THEREOF, WHICH ANTICORROSION AGENT IS PRESENT IN THE ANTIFREEZE COMPOSITION IN AN AMOUNT SUFFICIENT TO PRODUCE CONCENTRATIONS OF FROM ABOUT 0.01% TO ABOUT 2.0% OF THE BENZOTRIAZOLE COMPOUND AND FROM ABOUT 0.5% TO ABOUT 3.0% OF THE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL METABORATES, ALKALI METAL TETRABORATES, CALCIUM BORATE, AND MIXTURES THEREOF BASED ON THE WEIGHT OF THE WATER-SOLUBLE ALCOHOL.
Claim 2
Dependent Claim
139 words
AN ANTIFREEZE COMPOSITION COMPRISING A WATER-SOLUBLE ALCOHOL AS THE CHIEF NON-AQUEOUS INGREDIENT AND AN ANTICORROSION AGENT CONTAINING AS THE ESSENTIAL ANTICORROSIVE COMPONENTS FROM ABOUT 0.4% TO ABOUT 80% OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZOTRIAZOLE, ALKALI METAL SALTS OF BENZOTRIAZOLE, AMMONIUM SALT OF BENZOTRIAZOLE, AND MIXTURES THEREOF AND FROM ABOUT 99.6% TO ABOUT 20% OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL METABORATES, ALKALI METAL TERABORATES, CALCIUM BORATE, AND MIXTURE THEREOF, WHICH ANTICORROSION AGENT IS PRESENT IN THE ANTIFREEZE COMPOSITION IN AN AMOUNT SUFFICIENT TO PRODUCE CONCENTRATIONS OF FROM ABOUT 0.01% TO ABOUT 2.0% OF THE BENZOTRIAZOLE COMPOUND AND FROM ABOUT 0.5% TO ABOUT 3.0% OF THE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL METABORATES, ALKALI METAL TETRABORATES, CALCIUM BORATE, AND MIXTURES THEREOF BASED ON THE WEIGHT OF THE WATER-SOLUBLE ALCOHOL.
References Cited (Backward Citations)
US2373570A
Cited
US2618608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |