Patent US2418017A successfully refreshed from Google Patents.
US2418017A
Expired / Lapsed
US
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Electrical protective device
Assignee: James R Kearney Corp
•
Filing: 1943-07-23
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Granted: 1947-03-25
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Expires: 1963-07-23
Abstract
No abstract record available.
Inventors
- 👤 Albert B Ellicock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:47
CPC Classifications
H; H01; H01T; H01T1/00; H01T1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283492A
Cited
US607251A
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US1526770A
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GB394962A
Cited
US2152864A
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US2174477A
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US2315320A
Cited
US2307598A
Cited
US2305436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |