US2401228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base for electric lamps and similar devices
Assignee: General Electric Co
•
Filing: 1945-02-12
•
Granted: 1946-05-28
•
Expires: 1965-02-12
Abstract
No abstract record available.
Inventors
- 👤 Edward B Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:53
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50; C; C22; C22B; C22B19/00; C22B19/20; C22B19/24; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-05-27 | 1949-11-26 | 1950-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-27 | 1953-11-26 | 1954-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-27 | 1957-11-26 | 1958-05-28 | $7700.00 | Window Closed / Lapsed |