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US3705848A
Expired / Lapsed
US
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Apparatus for electrochemical burring and blunting sharp edges of current-conducting articles
Assignee: ALEXANDR STEPANOVICH RUMYANTSE
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Filing: 1970-07-22
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Granted: 1972-12-12
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Expires: 1990-07-22
Abstract
Abstract THE PRESENT INVENTION RELATES TO APPARATUS DESIGNED FOR ELECTROCHEMICAL BURNING AND BLUNTING SHARP EDGES ON CURRENT-CONDUCTING ARTICLES. THE INVENTION CONSISTS IN AN APPARATUS COMPRISING A CYLINDER WITH ELECTROLYTE, IN WHICH ARTICLES TO BE TREATED ARE PLACED, AND ELECTRODES WHICH FORM A CLOSED ELECTRIC CIRCUIT THROUGH THE ARTICLES AND ELECTROLYTE, SAID ELECTRIC CIRCUIT HAVING, ACCORDING TO THE INVENTION, AT LEAST TWO PAIRS OF HETEROPOLAR ELECTRODES.
Inventors
- 👤 Alexandr Lazarevich Vishnitsky
- 👤 Lev Mironovich Shapiro
- 👤 Evgeny Andreevich Kazantsev
- 👤 Benyamin Markovich Shvartsman
- 👤 Georgy Petrovich Shilov
- 👤 Evgeny Fedorovich Nemilov
- 👤 Izmail Abdulovich Baisupov
- 👤 Vasily Fomich Masterov
- 👤 Alexandr Stepanovic Rumyantsev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:20
CPC Classifications
C; C25; C25F; C25F7/00; B; B24; B24B; B24B31/00; B24B31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |