US3102086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of improving the corrosion resistance of titanium metals
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-07-17
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Granted: 1963-08-27
•
Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 Cotton Joseph Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:25
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A METHOD OF REDUCING THE RATE OF CORROSION OF A STRUCTURE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TITANIUM BASE ALLOYS HAVING ANODIC POLARIZATIN PROPERTIES COMPARABLE TO THOSE OF TITANIUM, SAID STRUCTURE BEING IN CONTACT WITH A LIQUD MEDIUM CORROSIVE THERETO AND COMPRISING A MEMBER OF THE GROUP CONSISTING OF SULPHURIC, PHOSPHORIC, HYDROCHLORIC, OXALIC AND FORMIC ACIDS, SAID METHOD COMPRISING IMMERSING A CONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF CARBON AND METALS OF THE PLATINUM GROUP IN SAID LIQUID AT A POINT REMOTE FROM SAID METAL STRUCTURE, AND ELECTRICALLY-CONNECTING SAID STRUCTURE AND SAID MATERIAL SO THAT DIRECT CURRENT PASSES BETWEEN THE STRUCTURE AND SAID MATERIAL AND THROUGH THE LIQUID MEDIUM TO INCREASE THE POTENTIAL OF THE STRUCTURE TO A VALUE AT WHICH A PROTECTIVE FILM IS MAINTAINED ON THE SURFACE OF SAID STRUCTURE BY ANODIC POLARIZATION, SAID POTENTIAL BEING NOT SUBSTANTIALLY IN EXCESS OF THE MINIMUM VALUE REQUIRED TO MAINTAIN SAID FILM ON THE SURFACE OF SAID STRUCTURE.
Claim 2
Independent Claim
163 words
A METHOD OF REDUCING THE RATE OF CORROSION OF A STRUCTURE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TITANIUM BASE ALLOYS HAVING ANODIC POLARIZATIN PROPERTIES COMPARABLE TO THOSE OF TITANIUM, SAID STRUCTURE BEING IN CONTACT WITH A LIQUD MEDIUM CORROSIVE THERETO AND COMPRISING A MEMBER OF THE GROUP CONSISTING OF SULPHURIC, PHOSPHORIC, HYDROCHLORIC, OXALIC AND FORMIC ACIDS, SAID METHOD COMPRISING IMMERSING A CONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF CARBON AND METALS OF THE PLATINUM GROUP IN SAID LIQUID AT A POINT REMOTE FROM SAID METAL STRUCTURE, AND ELECTRICALLY-CONNECTING SAID STRUCTURE AND SAID MATERIAL SO THAT DIRECT CURRENT PASSES BETWEEN THE STRUCTURE AND SAID MATERIAL AND THROUGH THE LIQUID MEDIUM TO INCREASE THE POTENTIAL OF THE STRUCTURE TO A VALUE AT WHICH A PROTECTIVE FILM IS MAINTAINED ON THE SURFACE OF SAID STRUCTURE BY ANODIC POLARIZATION, SAID POTENTIAL BEING NOT SUBSTANTIALLY IN EXCESS OF THE MINIMUM VALUE REQUIRED TO MAINTAIN SAID FILM ON THE SURFACE OF SAID STRUCTURE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |