US2566138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticorrosion tank
Assignee: McGraw Electric Co
•
Filing: 1944-11-20
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Granted: 1951-08-28
•
Expires: 1964-11-20
Abstract
No abstract record available.
Inventors
- 👤 Clark M Osterheld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:15
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/84; Y; Y10; Y10S; Y10S220/00; Y10S220/917; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12729; Y10T428/12736; Y10T428/12771; Y10T428/12785; Y10T428/12792; Y10T428/12799
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN IRON HOT WATER TANK HAVING IN DIRECT CONTACT WITH THE INTERIOR IRON SURFACE THEREOF A PROTECTIVE LINING FOR PREVENTING CORROSION OF THE INTERIOR BY ALKALINE AND ACIDIC POTABLE WATERS UNDER VARYING TEMPERATURE CONDITIONS, SAID LINING CONSISTING OF A METAL COATING OF ZINC ON THE TANK INTERIOR IRON SURFACE, AN INTERMEDIATE COATING OF ALUMINUM PAINT ON SAID ZINC COATING AND AN OUTER COATING OF MAGNESIUM PAINT ON SAID ALUMINUM COATING.
Claim 2
Dependent Claim
70 words
AN IRON HOT WATER TANK HAVING IN DIRECT CONTACT WITH THE INTERIOR IRON SURFACE THEREOF A PROTECTIVE LINING FOR PREVENTING CORROSION OF THE INTERIOR BY ALKALINE AND ACIDIC POTABLE WATERS UNDER VARYING TEMPERATURE CONDITIONS, SAID LINING CONSISTING OF A METAL COATING OF ZINC ON THE TANK INTERIOR IRON SURFACE, AN INTERMEDIATE COATING OF ALUMINUM PAINT ON SAID ZINC COATING AND AN OUTER COATING OF MAGNESIUM PAINT ON SAID ALUMINUM COATING.
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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) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |