Patent US1986863A successfully refreshed from Google Patents.
US2451830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starting arrangement for electric discharge devices
Assignee: General Electric Co
•
Filing: 1944-11-21
•
Granted: 1948-10-19
•
Expires: 1964-11-21
Abstract
No abstract record available.
Inventors
- 👤 Donald D Hinman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/16; H05B41/20; H05B41/23; H05B41/232; Y; Y10; Y10S; Y10S315/00; Y10S315/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1555547A
Cited
US1976645A
Cited
US2050135A
Cited
US2008514A
Cited
US2302213A
Cited
US2326597A
Cited
US2358810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |