US2608980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning cupreous articles
Assignee: Anaconda Wire and Cable Co
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Filing: 1948-05-22
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Granted: 1952-09-02
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Expires: 1968-05-22
Abstract
No abstract record available.
Inventors
- 👤 Clermont J Snyder
- 👤 Willis G Maclelland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:23
CPC Classifications
C; C23; C23G; C23G5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A PROCESS FOR REMOVING SCALE FROM A CUPREOUS ARTICLE INVOLVING HEATING THE ARTICLE IN A HALOGEN-BEARING ATMOSPHERE AND SUBSEQUENTLY COOLING THE ARTICLE, WHEREBY SCALE SEPARATES READILY THEREFROM, THE IMPROVEMENT WHICH COMPRISES INTRODUCING THE ARTICLE WHILE SUBSTANTIALLY HALOGEN-FREE INTTO AN ATMOSPHERE THAT IS SUBSTANTIALLY FREE FROM FUEL COMBUSTION PRODUCTS AND FROM METAL HALIDE VAPORS, INTRODUCING A HALOGEN INTO SAID ATMOSPHERE BY SUPPLYING DIRECTTLY THERETO AND IN GASEOUS FORM A SUBSTANCE OF THE GROUP CONSISTING OF ELEMENTAL HALOGENS AND HALOGEN ACIDS, AND HEATING THE ARTICLE IN SAID ATMOSPHERE TO A TEMPERATURE OF ABOUT 1250* F.
Claim 2
Dependent Claim
94 words
IN A PROCESS FOR REMOVING SCALE FROM A CUPREOUS ARTICLE INVOLVING HEATING THE ARTICLE IN A HALOGEN-BEARING ATMOSPHERE AND SUBSEQUENTLY COOLING THE ARTICLE, WHEREBY SCALE SEPARATES READILY THEREFROM, THE IMPROVEMENT WHICH COMPRISES INTRODUCING THE ARTICLE WHILE SUBSTANTIALLY HALOGEN-FREE INTTO AN ATMOSPHERE THAT IS SUBSTANTIALLY FREE FROM FUEL COMBUSTION PRODUCTS AND FROM METAL HALIDE VAPORS, INTRODUCING A HALOGEN INTO SAID ATMOSPHERE BY SUPPLYING DIRECTTLY THERETO AND IN GASEOUS FORM A SUBSTANCE OF THE GROUP CONSISTING OF ELEMENTAL HALOGENS AND HALOGEN ACIDS, AND HEATING THE ARTICLE IN SAID ATMOSPHERE TO A TEMPERATURE OF ABOUT 1250* F.
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) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |