Patent US3027313A successfully refreshed from Google Patents.
US3027313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of insulating coatings on metal
Assignee: Siemens Edison Swan Ltd
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Filing: 1959-04-16
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Granted: 1962-03-27
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Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 Darlaston Arthur John Halstead
- 👤 Alston Mervyn William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:28
CPC Classifications
C; C25; C25D; C25D13/00; C25D13/02; H; H01; H01J; H01J9/00; H01J9/02; H01J9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR PRODUCING AN ELECTRICALLY INSULATING COATING ON A METAL WIRE, WHICH CONSISTS IN PASSING SAID WIRE THROUGH AN AQUEOUS ELECTROLYTE CONTAINING MAGNESIUM NITRATE AND ZIRCONIUM NITRATE IN SOLUTION AND HAVING POWDERED ALUMINA SUSPENDED THEREIN, AND APPLYING AN ELECTRIC POTENTIAL OF ABOUT 20 VOLTS BETWEEN SAID WIRE AND AN ELECTRICALLY CONDUCTING ELECTRODE IN CONTACT WITH SAID ELECTROLYTE WITH SAID WIRE AT A NEGATIVE POTENTIAL WITH RESPECT TO SAID ELECTRODE THE ELECTROLYTE CONTAINING, BY WEIGHT, ABOUT 0.83% MAGNESIUM NITRATE ABOUT 0.57% ZIRCONIUM NITRATE ABOUT 40.6% AI2O3, ABOUT 24.5% DEMINERALISED WATER, AND ABOUT 33.5% METHYLATED SPIRIT.
Claim 2
Dependent Claim
95 words
A PROCESS FOR PRODUCING AN ELECTRICALLY INSULATING COATING ON A METAL WIRE, WHICH CONSISTS IN PASSING SAID WIRE THROUGH AN AQUEOUS ELECTROLYTE CONTAINING MAGNESIUM NITRATE AND ZIRCONIUM NITRATE IN SOLUTION AND HAVING POWDERED ALUMINA SUSPENDED THEREIN, AND APPLYING AN ELECTRIC POTENTIAL OF ABOUT 20 VOLTS BETWEEN SAID WIRE AND AN ELECTRICALLY CONDUCTING ELECTRODE IN CONTACT WITH SAID ELECTROLYTE WITH SAID WIRE AT A NEGATIVE POTENTIAL WITH RESPECT TO SAID ELECTRODE THE ELECTROLYTE CONTAINING, BY WEIGHT, ABOUT 0.83% MAGNESIUM NITRATE ABOUT 0.57% ZIRCONIUM NITRATE ABOUT 40.6% AI2O3, ABOUT 24.5% DEMINERALISED WATER, AND ABOUT 33.5% METHYLATED SPIRIT.
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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |