US2426463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glow starter for electric discharge devices
Assignee: GTE Sylvania Inc
•
Filing: 1944-03-27
•
Granted: 1947-08-26
•
Expires: 1964-03-27
Abstract
No abstract record available.
Inventors
- 👤 Ronald J Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:13
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/02; H05B41/04; H05B41/06; H05B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB348686A
Cited
FR732488A
Cited
US2200443A
Cited
US2181294A
Cited
US2228210A
Cited
US2210701A
Cited
US2336923A
Cited
US2343172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |