US2497496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode structure for electric discharge devices or lamps
Assignee: General Electric Co
•
Filing: 1946-03-30
•
Granted: 1950-02-14
•
Expires: 1966-03-30
Abstract
No abstract record available.
Inventors
- 👤 Gooskens Henricus
- 👤 Elenbaas Willem
- 👤 Padmos Adriaan Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:03
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/06; H01J61/073; H01J1/00; H01J1/02; H01J1/13; H01J1/14; H01J61/0732; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/929; Y10T; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12819; Y10T428/12826; Y10T428/1284
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |