US2610289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosed internally heated electric discharge lamp luminaire for variable temperature service
Assignee: Individual
•
Filing: 1949-02-23
•
Granted: 1952-09-09
•
Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Brainerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:22
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21V; F21V29/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB392796A
Cited
US1988555A
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US2101135A
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US2203550A
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US2167472A
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US2194300A
Cited
US2373402A
Cited
US2302667A
Cited
US2293116A
Cited
US2456870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |