Patent US2539898A successfully refreshed from Google Patents.
US2539898A
Expired / Lapsed
US
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Electrical contact mechanism for plating machines
Assignee: Udylite Corp
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Filing: 1947-09-11
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Granted: 1951-01-30
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Expires: 1967-09-11
Abstract
No abstract record available.
Inventors
- 👤 John V Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:07
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0409; B65G49/0436; B65G49/0472; B65G49/0477; B65G49/0481; B65G49/049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1577589A
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US1920774A
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US2018016A
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US2129706A
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US2170285A
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US2223870A
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US2414301A
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US2412382A
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US2484079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |