Patent US2726215A successfully refreshed from Google Patents.
US2726215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust inhibitors for aqueous systems
Assignee: Atlantic Richfield Co
•
Filing: 1952-04-19
•
Granted: 1955-12-06
•
Expires: 1972-04-19
Abstract
No abstract record available.
Inventors
- 👤 Donald T Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:40
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/124; C23F11/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A METHOD FOR REDUCING THE CORROSION OF METALS IN CONTACT WITH AQUEOUS SOLUTIONS WHICH COMPRISES INTRODUCING INTO SAID AQUEOUS SOLUTION A MINOR BUT CORROSIONINHIBITING AMOUNT OF A SALT SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL SALT AND AN ALKALINE EARTH METAL SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SEBACIC ACID AZELAIC ACID.
Claim 2
Independent Claim
57 words
A METHOD FOR REDUCING THE CORROSION OF METALS IN CONTACT WITH AQUEOUS SOLUTIONS WHICH COMPRISES INTRODUCING INTO SAID AQUEOUS SOLUTION A MINOR BUT CORROSIONINHIBITING AMOUNT OF A SALT SELECTED FROM THE GROUP CONSISTING OF AN ALKALI METAL SALT AND AN ALKALINE EARTH METAL SALT OF AN ACID SELECTED FROM THE GROUP CONSISTING OF SEBACIC ACID AZELAIC ACID.
References Cited (Backward Citations)
US2363516A
Cited
US2426496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |