US3472993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of electroerosion machining a metal workpiece in a dielectric fluid resting on an immiscible,heavier,electrolytic solution
Assignee: Individual
•
Filing: 1966-05-05
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Granted: 1969-10-14
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Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Anatoly Pavlovich Gromov
- 👤 Evgenia Nikolaevna Lukasheva
- 👤 Anatoly Vasilievich Glazkov
- 👤 Abram Lazarevich Livshits
- 👤 Vladimir Vasilievich Pozhalkin
- 👤 Vadim Evgenievich Polotsky
- 👤 Mikhail Venediktovich Scherbak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:54
CPC Classifications
B; B23; B23H; B23H5/00; B23H5/12; C; C25; C25F; C25F7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2526423A
Cited
US2996602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |