US3225187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire assembly
Assignee: McGraw Edison Co
•
Filing: 1963-03-29
•
Granted: 1965-12-21
•
Expires: 1983-03-29
Abstract
No abstract record available.
Inventors
- 👤 Paul J Curtin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:19
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A LIGHTING UNIT INCLUDING A BASE PORTION HAVING REFRACTOR SUPPORT MEANS ON ITS UPPER END, OPEN-ENDED REFRACTOR MEANS HAVING A LOWER END ENGAGING SAID SUPPORT MEANS AND EXTENDING UPWARDLY THEREFROM, HOOD MEANS INCLUDING AN INVERTED DISHED REFLECTOR DISPOSED ABOVE AND EXTENDING GENERALLY OUTWARDLY FROM THE UPPER END OF SAID REFRACTOR MEANS REFLECTOR, SUPPORT MEANS SECURED AT ONE END TO SAID BASE PORTION AND EXTENDING UPWARDLY THEREFROM, COUPLING MEANS SPACED FROM THE UPPER END OF SAID REFRACTOR FOR RELEASABLY SECURING SAID HOOD MEANS TO SAID SUPPORT MEANS AND FOR DRAWING SAID HOOD MEANS DOWNWARDLY TOWARD SAID BASE, SAID REFLECTOR COMPRISING A RELATIVELY THIN RESILIENT METALLIC MEMBER, SAID COUPLING MEANS HOLDING SAID REFLECTOR IPN RESILIENT ENGAGEMENT WITH
Claim 2
Dependent Claim
115 words
A LIGHTING UNIT INCLUDING A BASE PORTION HAVING REFRACTOR SUPPORT MEANS ON ITS UPPER END, OPEN-ENDED REFRACTOR MEANS HAVING A LOWER END ENGAGING SAID SUPPORT MEANS AND EXTENDING UPWARDLY THEREFROM, HOOD MEANS INCLUDING AN INVERTED DISHED REFLECTOR DISPOSED ABOVE AND EXTENDING GENERALLY OUTWARDLY FROM THE UPPER END OF SAID REFRACTOR MEANS REFLECTOR, SUPPORT MEANS SECURED AT ONE END TO SAID BASE PORTION AND EXTENDING UPWARDLY THEREFROM, COUPLING MEANS SPACED FROM THE UPPER END OF SAID REFRACTOR FOR RELEASABLY SECURING SAID HOOD MEANS TO SAID SUPPORT MEANS AND FOR DRAWING SAID HOOD MEANS DOWNWARDLY TOWARD SAID BASE, SAID REFLECTOR COMPRISING A RELATIVELY THIN RESILIENT METALLIC MEMBER, SAID COUPLING MEANS HOLDING SAID REFLECTOR IPN RESILIENT ENGAGEMENT WITH
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |