Patent US2865832A successfully refreshed from Google Patents.
US2865832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic dissolution of stainless steel
Assignee: Individual
•
Filing: 1953-06-10
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Granted: 1958-12-23
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Expires: 1973-06-10
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Pitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:19
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/02; C25F3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
APPARATUS FOR SUBSTANTIALLY COMPLETELY DISSOLVED RADIOACTIVE STAINLESS STEEL ELEMENTS IN NITRIC ACID, THE STEEL OF SAID ELEMENTS HAVING A HIGH CHROMIUM CONTENT, SAID APPARATUS COMPRISING AN ELECTROLYTIC CELL ADAPTED TO CONTAUN NITRIC ACID, A SOURCE OF ELECTROLYZING CURRENT, MEANS FOR SUPPLYING SAID ELECTROLYZING CURRENT TO SAID ELEMENTS IN SAID BATH, SAID SAID MEANS COMPRISING A CATHODE AND AN ANODE HOLDER IN SAID CELL, SAID ANODE HOLDER BEING COMPOSED ENTIRELY OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITALUM, COLUBIUM, TITANIUN AND ZICONIUM, SAID ANODE HOLDER BEING ADAPTED TO RECEIVE AND SUPPORT SAID STAINLESS STEEL ELEMENTS AND BEING COATED WITH A FILM FORMED BY SUBJECTING SAID METAL TO ELECTROLYTIC ATTACK IN NITRIC ACID WHEREBY SAID HOLDER IS ADAPTED TO SUPPLY ELECTROLYZING CURRENT TO SAID STEEL ELEMENTS IN NITRIC ACID BATH ONLY AT POINTS WHERE SAID ELEMENTS REST IN CONTACT WITH SAID ANODE HOLDER AND MEANS FOR AGITATING SAID HOLDER.
Claim 2
Dependent Claim
149 words
APPARATUS FOR SUBSTANTIALLY COMPLETELY DISSOLVED RADIOACTIVE STAINLESS STEEL ELEMENTS IN NITRIC ACID, THE STEEL OF SAID ELEMENTS HAVING A HIGH CHROMIUM CONTENT, SAID APPARATUS COMPRISING AN ELECTROLYTIC CELL ADAPTED TO CONTAUN NITRIC ACID, A SOURCE OF ELECTROLYZING CURRENT, MEANS FOR SUPPLYING SAID ELECTROLYZING CURRENT TO SAID ELEMENTS IN SAID BATH, SAID SAID MEANS COMPRISING A CATHODE AND AN ANODE HOLDER IN SAID CELL, SAID ANODE HOLDER BEING COMPOSED ENTIRELY OF A METAL SELECTED FROM THE GROUP CONSISTING OF TITALUM, COLUBIUM, TITANIUN AND ZICONIUM, SAID ANODE HOLDER BEING ADAPTED TO RECEIVE AND SUPPORT SAID STAINLESS STEEL ELEMENTS AND BEING COATED WITH A FILM FORMED BY SUBJECTING SAID METAL TO ELECTROLYTIC ATTACK IN NITRIC ACID WHEREBY SAID HOLDER IS ADAPTED TO SUPPLY ELECTROLYZING CURRENT TO SAID STEEL ELEMENTS IN NITRIC ACID BATH ONLY AT POINTS WHERE SAID ELEMENTS REST IN CONTACT WITH SAID ANODE HOLDER AND MEANS FOR AGITATING SAID HOLDER.
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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) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |