US2411952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead electric lighting fixture
Assignee: Day Brite Lighting Inc
•
Filing: 1944-09-09
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Granted: 1946-12-03
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Expires: 1964-09-09
Abstract
No abstract record available.
Inventors
- 👤 David J Biller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:12
CPC Classifications
F; F21; F21V; F21V11/00; F21V11/02; F21S; F21S8/00; F21S8/04; F21V17/00; F21Y; F21Y2103/00
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) | 1949-12-02 | 1950-06-03 | 1950-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-02 | 1954-06-03 | 1954-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-02 | 1958-06-03 | 1958-12-03 | $7700.00 | Window Closed / Lapsed |