US2433819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting device for lighting fixtures
Assignee: GTE Sylvania Inc
•
Filing: 1945-05-23
•
Granted: 1947-12-30
•
Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Scribner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 22:30
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/02; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1368239A
Cited
US2347113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |