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Patent US3079343A successfully refreshed from Google Patents.
US3079343A
Expired / Lapsed
US
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Antifreeze composition containing an indicator material
Assignee: Pure Oil Co
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Filing: 1960-09-07
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Granted: 1963-02-26
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Expires: 1980-09-07
Abstract
No abstract record available.
Inventors
- 👤 George G Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:56
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN ANTIFREEZE COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID ALCOHOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER-MISCIBLE MONOHYDRIC AND POLYHYDRIC ALCOHOLS CONTAINING IN SOLUTION FROM ABOUT 0.05-500 P.P.M. OF 2,2''-BIPYRIDINE AND FROM ABOUT 3-30,000 P.P.M. OF THE TETRASODIUM SALT OF ETHYLENEDIAMINETETRAACETIC ACID.
Claim 2
Dependent Claim
42 words
AN ANTIFREEZE COMPOSITION CONSISTING ESSENTIALLY OF A LIQUID ALCOHOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER-MISCIBLE MONOHYDRIC AND POLYHYDRIC ALCOHOLS CONTAINING IN SOLUTION FROM ABOUT 0.05-500 P.P.M. OF 2,2''-BIPYRIDINE AND FROM ABOUT 3-30,000 P.P.M. OF THE TETRASODIUM SALT OF ETHYLENEDIAMINETETRAACETIC ACID.
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) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |