Patent US2438006A successfully refreshed from Google Patents.
US2438006A
Expired / Lapsed
US
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Electric cord
Assignee: Zenith Electronics LLC
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Filing: 1944-06-05
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Granted: 1948-03-16
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Expires: 1964-06-05
Abstract
No abstract record available.
Inventors
- 👤 Gilbert E Gustafson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:37
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968903A
Cited
US2004592A
Cited
US2036616A
Cited
US2354857A
Cited
US2349412A
Cited
US2313234A
Cited
US2349761A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |