US2578725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of protecting metals against corrosion
Assignee: Individual
•
Filing: 1949-10-20
•
Granted: 1951-12-18
•
Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Josef M Michel
- 👤 Karl F Hager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:31
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
THE PROCESS OF PROTECTING METALS AGAINST CORROSION FROM CONTACT WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS, KETONES AND WATER MIXTURES THEREOF WHICH COMPRISES EFFECTING SAID CONTACT IN THE PRESENCE OF A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
38 words
THE PROCESS OF PROTECTING METALS AGAINST CORROSION FROM CONTACT WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALCOHOLS, KETONES AND WATER MIXTURES THEREOF WHICH COMPRISES EFFECTING SAID CONTACT IN THE PRESENCE OF A COMPOUND HAVING THE FORMULA
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) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |