US2924639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical junction boxes
Assignee: General Electric Co
•
Filing: 1955-11-16
•
Granted: 1960-02-09
•
Expires: 1975-11-16
Abstract
No abstract record available.
Inventors
- 👤 Elmer J Zelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:46
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/16; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1217398A
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US1481415A
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US1718878A
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US1898282A
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US1909136A
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US2046810A
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DE889620C
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US2180575A
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US2420184A
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US2457023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |