US2434768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control switch for discharge lamps
Assignee: General Electric Co
•
Filing: 1945-09-17
•
Granted: 1948-01-20
•
Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 Wilber M Johnson
- 👤 Leonard W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:28
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; H05B41/10; Y; Y10; Y10S; Y10S315/00; Y10S315/02; Y10S315/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2212427A
Cited
US2341520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |