Patent US2447498A successfully refreshed from Google Patents.
US2447498A
Expired / Lapsed
US
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Electrical fixture or the like
Assignee: Individual
•
Filing: 1944-03-23
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Granted: 1948-08-24
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Expires: 1964-03-23
Abstract
No abstract record available.
Inventors
- 👤 George G Ellner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:27
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2320815A
Cited
US1030910A
Cited
US1963949A
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DE628856C
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US2123071A
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US2182434A
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US2227881A
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US2201153A
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US2290301A
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US2306700A
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US2346717A
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US2336414A
Cited
US2338077A
Cited
US2339010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |