US2415902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp base and holder
Assignee: General Electric Co
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Filing: 1944-04-12
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Granted: 1947-02-18
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Expires: 1964-04-12
Abstract
No abstract record available.
Inventors
- 👤 Edward B Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:59
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/04; G03B15/0442; F; F21; F21V; F21V19/00; F21V19/006; F21V19/0065; H; H01; H01J; H01J9/00; H01J9/24; H01J9/30; H01K; H01K1/00; H01K1/42; H01K1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |