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Patent US2923429A successfully refreshed from Google Patents.
US2923429A
Expired / Lapsed
US
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Outdoor lighting fixture for fluorescent lamps
Assignee: Dr-Ing Schneider & Co
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Filing: 1957-10-15
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Granted: 1960-02-02
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Expires: 1977-10-15
Abstract
No abstract record available.
Inventors
- 👤 Schneider John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:21
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/086; F21V; F21V17/00; F21V17/10; F21V17/20; F21W; F21W2131/00; F21W2131/10; F21Y; F21Y2103/00
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |