US3654346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-ester-amide-acids
Assignee: Baker Petrolite LLC
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Filing: 1968-06-03
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Granted: 1972-04-04
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Expires: 1988-06-03
Abstract
Abstract THE REACTION PRODUCTS OF (1) AN ALKYL OR ALKENYL SUCCINIC ACID OR AN ANHYDRIDE THEREOF (ALSO REFERRED TO AS ASAA) WITH (2) A POLYOL, PREFERABLY A DIOL AND (3) AN ALKANOLAMINE (THE REACTION PRODUCTS REFERED TO AS "POLYESTER-AMIDE-ACIDS"). IN THE PREFERRED EMBODIMENT (1) ASAA IS REACTED FIRST WITH (2) A DIOL WHICH IS THEN REACTED WITH (3) AN ALKANOL AMINE WHICH IS THEN REACTED WITH (4) ASAA; AND TO THE USES FOR THESE PRODUCTS, PARTICULARLY AS RUST AND CORROSION INHIBITORS.
Inventors
- 👤 Richard L Godar
- 👤 Theodore Spanos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:16
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/01; C07C233/16; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |