US2644027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outdoor fixture for tubular lights
Assignee: COLUMBIA ELECTRIC AND Manufacturing CO
•
Filing: 1949-09-06
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Granted: 1953-06-30
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Expires: 1969-09-06
Abstract
No abstract record available.
Inventors
- 👤 Edward M Caferro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:09
CPC Classifications
F; F21; F21V; F21V17/00; F21V17/02; F21S; F21S4/00; F21S4/20; F21W; F21W2131/00; F21W2131/10; F21W2131/107; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US382110A
Cited
FR791228A
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US2176212A
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US2169091A
Cited
GB524636A
Cited
GB549743A
Cited
US2314038A
Cited
US2393616A
Cited
US2476352A
Cited
US2476856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |