Patent US2912373A successfully refreshed from Google Patents.
US2444014A
Expired / Lapsed
US
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Distributor testing apparatus and circuit
Assignee: FRANKLIN TRANSFORMER MANUFACTURING Co
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Filing: 1945-11-23
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Granted: 1948-06-22
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Expires: 1965-11-23
Abstract
No abstract record available.
Inventors
- 👤 Alan C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
F; F02; F02P; F02P17/00; F02P17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2006737A
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US1900215A
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US2100700A
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US2096427A
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US2097066A
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GB488842A
Cited
US2254175A
Cited
US2351441A
Cited
US2232715A
Cited
US2354086A
Cited
US2371636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |