US2834735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing an alcohol-base antifreeze containing an alkaline earth metal borate as aninhibitor
Assignee: Texaco Inc
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Filing: 1954-04-23
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Granted: 1958-05-13
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Expires: 1974-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert A Woodle
- 👤 Robert H Wowell
- 👤 William B Chandler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:29
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS FOR PRODUCING A GLYCOL BASE ANTIFREEZE CONTAINING AN ALKALINE EARTH METAL BORATE AS AN INHIBITOR, SAID PROCESS COMPRISING DISSOLVING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORAX AND BORIC ACID IN A GLYCOL TO FORM A GLYCOL SOLUTION, AND THEN CONTACTING SAID GLYCOL SOLUTION WITH A CATION EXCHANGE RESIN HAVING EXCHANGEABLE CATIONS OF SAID ALKALINE EARTH METAL.
Claim 2
Dependent Claim
60 words
A PROCESS FOR PRODUCING A GLYCOL BASE ANTIFREEZE CONTAINING AN ALKALINE EARTH METAL BORATE AS AN INHIBITOR, SAID PROCESS COMPRISING DISSOLVING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORAX AND BORIC ACID IN A GLYCOL TO FORM A GLYCOL SOLUTION, AND THEN CONTACTING SAID GLYCOL SOLUTION WITH A CATION EXCHANGE RESIN HAVING EXCHANGEABLE CATIONS OF SAID ALKALINE EARTH METAL.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |