US2609484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting of operating rooms
Assignee: Anciens Etablissements Barbier Benard and Turenne SA
•
Filing: 1949-05-10
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Granted: 1952-09-02
•
Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Benard Christian Louis Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:15
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21W; F21W2131/00; F21W2131/20; F21W2131/205; Y; Y10; Y10S; Y10S362/00; Y10S362/804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US243406A
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US1631488A
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US1871919A
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US2114664A
Cited
US2249610A
Cited
US2243788A
Cited
US2442297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |