Patent US2590927A successfully refreshed from Google Patents.
US2590927A
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US
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Electrolytic method of removing burrs
Assignee: Westinghouse Electric Corp
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Filing: 1948-07-17
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Granted: 1952-04-01
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Expires: 1968-07-17
Abstract
No abstract record available.
Inventors
- 👤 Weldon H Brandt
- 👤 Morgan W Rider
- 👤 Raymond C Westphal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:31
CPC Classifications
C; C25; C25F; C25F3/00; C25F3/02; Y; Y10; Y10S; Y10S451/00; Y10S451/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US870937A
Cited
US1658222A
Cited
US1867527A
Cited
US1949713A
Cited
US2132438A
Cited
US2293951A
Cited
US2243578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |