US2911519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote controlled hospital light
Assignee: RODNEY PERDEW
•
Filing: 1956-09-18
•
Granted: 1959-11-03
•
Expires: 1976-09-18
Abstract
No abstract record available.
Inventors
- 👤 John P Phillips
- 👤 Carl E Ebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:01
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA462762A
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US2733311A
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US1823083A
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US1833308A
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US2390634A
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US2401390A
Cited
US2572825A
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US2614208A
Cited
US2790068A
Cited
US2754411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |