US2767106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of protecting metal with amines and composition therefor
Assignee: Dearborn Chemical Co
•
Filing: 1955-09-27
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Granted: 1956-10-16
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Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lewis O Gunderson
- 👤 Wayne L Denman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:42
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF PROTECTING METAL CONTACTING SURFACES IN A CONTINUOUSLY FLOWING SYSTEM FOR TRANSPORTING AQUEOUS MEDIA HAVING CORROSIVE QUALITIES, WHICH COMPRISES THE STEP OF ADDING TO THE TRANSPORTING MEDIA AN ALIPHATIC AMINE GLYCOLATE WHEREIN EACH ALIPHATIC RADICAL IS A C12C20 HYDROCARBON RADICAL, IN CONCENTRATIONS OF NOT MORE THAN 100 P.P.M. BUT SUFFICIENT FOR FORMING A PROTECTIVE
Claim 2
Independent Claim
56 words
A METHOD OF PROTECTING METAL CONTACTING SURFACES IN A CONTINUOUSLY FLOWING SYSTEM FOR TRANSPORTING AQUEOUS MEDIA HAVING CORROSIVE QUALITIES, WHICH COMPRISES THE STEP OF ADDING TO THE TRANSPORTING MEDIA AN ALIPHATIC AMINE GLYCOLATE WHEREIN EACH ALIPHATIC RADICAL IS A C12C20 HYDROCARBON RADICAL, IN CONCENTRATIONS OF NOT MORE THAN 100 P.P.M. BUT SUFFICIENT FOR FORMING A PROTECTIVE
References Cited (Backward Citations)
US2460259A
Cited
US2712531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |