US3699052A
Expired / Lapsed
US
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Corrosion inhibitor composition containing a glycine,chelating agent,phosphoric or boric acid ester,and a water soluble divalent metal salt
Assignee: Drew Chemical Corp
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Filing: 1969-11-12
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Granted: 1972-10-17
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Expires: 1989-11-12
Abstract
Abstract A MULTI-FUNCTIONAL CORROSION INHIBITOR WHICH COMPRISES A DIVALENT METAL ION CHELATING AGENT, A TRIVALENT INORGANIC ACID ESTER, AND AN AMINO ACID OR A DERIVATIVE THEREOF, AND THE PROCESS OF UTILIZING SAID CORROSION INHIBITOR IN A MULTITUDE OF NON-RELATED APPLICATIONS.
Inventors
- 👤 Ernest Quentin Petrey Jr
- 👤 Ronald M Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:10
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C23; C23F; C23F11/00; C23F11/08; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/904
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |