US2846378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode and its manufacture
Assignee: American Potash and Chemical Corp
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Filing: 1956-02-07
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Granted: 1958-08-05
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Expires: 1976-02-07
Abstract
No abstract record available.
Inventors
- 👤 Roger W Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:37
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/054
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
92 words
AN ANODE FOR USE WITH CORROSIVE ELECTROLYTES CONSISTING OF A METAL HAVING ELECTROLYTICALLY DEPOSITED THEREON A LAYER OF LEAD DIOXIDE FROM A BATH CONTAINING A SOLUTION OF A LEAD SALT OF A WATER-SOLUBLE ORGANIC ACID, SAID LEAD DIOXIDE BEING ELECTROLYTICALLY DEPOSITED FROM AN ALKALINE SOLUTION OF SAID SALT; SAID LEAD DIOXIDE COATED BASE HAVING THEREON AN EXTERIOR DEPOSIT OF LEAD DIOXIDE, SAID EXTERIOR DEPOSIT OF LEAD DIOXIDE HAVING BEEN ELECTROLYTICALLY DEPOSITED FROM AN ACID BATH OF A LEAD SALT SELECTED FROM THE GROUP CONSISTING OF LEAD PERCHLORATE, LEAD SULFAMATE AND LEAD NITRATE.
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |