US3030308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifreeze composition
Assignee: Texaco Inc
•
Filing: 1958-05-28
•
Granted: 1962-04-17
•
Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert J Agnew
- 👤 James K Truitt
- 👤 William D Robertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
AN ANTIFREEZE COMPOSITION ADAPTED TO BE ADDED TO WATER CONSISTING ESSENTIALLY OF A WATER-SOLUBLE LIQUID ALCOHOL FREEZING POINT DEPRESSANT CONTAINING BETWEEN ABOUT 0.1 AND 5% BY WEIGHT OF A MAGNESIUM METABORATE AND BETWEEN ABOUT 0.5 TO 5% BY WEIGHT OF AN ALKALI METAL MOLYBDATE.
Claim 2
Dependent Claim
44 words
AN ANTIFREEZE COMPOSITION ADAPTED TO BE ADDED TO WATER CONSISTING ESSENTIALLY OF A WATER-SOLUBLE LIQUID ALCOHOL FREEZING POINT DEPRESSANT CONTAINING BETWEEN ABOUT 0.1 AND 5% BY WEIGHT OF A MAGNESIUM METABORATE AND BETWEEN ABOUT 0.5 TO 5% BY WEIGHT OF AN ALKALI METAL MOLYBDATE.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |