US3543235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable light beam director having removable verticle baffles
Assignee: EAGLE SIGNAL CONTROLS CORP A CORP OF DE
•
Filing: 1969-05-19
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Granted: 1970-11-24
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Expires: 1989-05-19
Abstract
No abstract record available.
Inventors
- 👤 Willis M Eikenberry
- 👤 William W Huppert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:06
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/095; F; F21; F21V; F21V11/00; F21V11/02; F21V11/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2312074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |