US2779812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Junction box for ballast transformer
Assignee: General Electric Co
•
Filing: 1952-10-25
•
Granted: 1957-01-29
•
Expires: 1972-10-25
Abstract
No abstract record available.
Inventors
- 👤 Robert F Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:45
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/10; Y; Y10; Y10S; Y10S174/00; Y10S174/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US990161A
Cited
US1698252A
Cited
US1965437A
Cited
US1966301A
Cited
US2055624A
Cited
US2059217A
Cited
US2133944A
Cited
US2226670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |