US3794596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and composition for the prevention of scale
Assignee: Texaco Inc
•
Filing: 1971-03-08
•
Granted: 1974-02-26
•
Expires: 1991-03-08
Abstract
Abstract METHOD OF AND COMPOSITION FOR THE PREVENTION OF SCALE, PARTICULARLY CALCIUM SULFATE SCALE, USING A WATER SOLUBLE 1,2''-HYDROXYETHYL-2-HYDROCARBYL - 2 - IMIDAZOLINE WHEREIN THE HYDROCARBYL GROUP CONTAINS FROM ABOUT 12 TO ABOUT 20 CARBON ATOMS AND SALTS THEREOF.
Inventors
- 👤 J Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/528; Y; Y10; Y10S; Y10S507/00; Y10S507/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |