US2863837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting bath
Assignee: Henkel AG and Co KGaA
•
Filing: 1956-05-04
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Granted: 1958-12-09
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Expires: 1976-05-04
Abstract
No abstract record available.
Inventors
- 👤 Kowald Bernhard
- 👤 Tischbirek Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:31
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/16; C23F11/163; C23F11/06; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/065; C23G1/14; C23G1/16; C23G1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A BATH FOR TREATING METALS IN ORDER TO PROTECT THEM AGAINST CORROSION, WHEREIN THE METALS TREATED ARE SELECTED FROM THE GROUP CONSISTING OF IRON, ZINC, ALUMINUM AND THE ALLOYS OF SAID METALS, SAID BATH CONTAINING AN AQUEOUS SOLUTION OF A SUBSTANCE CAPABLE OF EVOLVING HYDROGEN IN THE PRESENCE OF SAID METALS AND AS AN ANTICORROSIVE A SULFONATION PRODUCT OF A NITRILE OF A FATTY ACID HAVING FROM 10-19 C ATOMS PER MOLECULE.
Claim 2
Dependent Claim
72 words
A BATH FOR TREATING METALS IN ORDER TO PROTECT THEM AGAINST CORROSION, WHEREIN THE METALS TREATED ARE SELECTED FROM THE GROUP CONSISTING OF IRON, ZINC, ALUMINUM AND THE ALLOYS OF SAID METALS, SAID BATH CONTAINING AN AQUEOUS SOLUTION OF A SUBSTANCE CAPABLE OF EVOLVING HYDROGEN IN THE PRESENCE OF SAID METALS AND AS AN ANTICORROSIVE A SULFONATION PRODUCT OF A NITRILE OF A FATTY ACID HAVING FROM 10-19 C ATOMS PER MOLECULE.
References Cited (Backward Citations)
DE907053C
Cited
US2411593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |