Patent US3239661A successfully refreshed from Google Patents.
US3239661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface-attached luminaire
Assignee: Day Brite Lighting Inc
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Filing: 1962-05-09
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Granted: 1966-03-08
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Expires: 1982-05-09
Abstract
No abstract record available.
Inventors
- 👤 Vearl S Wince
- 👤 Carl X Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:54
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21V; F21V5/00; F21V7/00; F21V7/0008; F21V7/0016; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A LUMINAIRE, COMPRISING MEANS FOR MOUNTING A REFRACTOR, SAID MOUNTING MEANS BEING FORMED WITH SLOTS OPENING UPWARDLY IN A HORIZONTAL UPPER PORTION THEREOF, A REFRACTOR HAVING A WEB PORTION ADAPTED TO DIRECT LIGHT IN A SUBSTANTIALLY DOWNWARD DIRECTION, AN ILLUMINATING TRIM EXTENDING FROM AND AROUND THE PERIPHERY OF SAID WEB PORTION AND SUBSTANTIALLY PERPENDICULAR THERETO, A SUPPORTING FLANGE EXTENDING OUTWARDLY OF THE FREE EDGE
Claim 2
Dependent Claim
64 words
A LUMINAIRE, COMPRISING MEANS FOR MOUNTING A REFRACTOR, SAID MOUNTING MEANS BEING FORMED WITH SLOTS OPENING UPWARDLY IN A HORIZONTAL UPPER PORTION THEREOF, A REFRACTOR HAVING A WEB PORTION ADAPTED TO DIRECT LIGHT IN A SUBSTANTIALLY DOWNWARD DIRECTION, AN ILLUMINATING TRIM EXTENDING FROM AND AROUND THE PERIPHERY OF SAID WEB PORTION AND SUBSTANTIALLY PERPENDICULAR THERETO, A SUPPORTING FLANGE EXTENDING OUTWARDLY OF THE FREE EDGE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |