US3094286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Post top mounted lighting unit
Assignee: McGraw Edison Co
•
Filing: 1959-09-25
•
Granted: 1963-06-18
•
Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 Donald W Harling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:24
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/08; F21S8/085; F21S8/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A POST TOP LIGHTING UNIT INCLUDING, POST TOP ENGAGING ADAPTOR MEANS, A TUBULAR BASE PORTION ATTACHED TO SAID POST TOP ADAPTOR MEANS AND HAVING AN OPEN TOP AND BOTTOM, SAID BASE PORTION INCLUDING A FIRST REFRACTOR RING ON ITS UPPER END, A TUBULAR REFRACTOR HAVING A LOWER END ENGAGING SAID FIRST REFRACTOR RING AND EXTENDING GENERALLY UPWARD THEREFROM, A SECOND REFRACTOR RING ENGAGING THE UPPER EDGE OF SAID REFRACTOR, AN INVERTED DISHED REFLECTOR HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID REFRACTOR, RELEASABLE ATTACHMENT MEANS FOR MOUNTING SAID REFLECTOR ON SAID SECOND REFRACTOR RING, A PLURALITY OF SPACED APART ROD-LIKE MEMBERS COUPLED TO SAID BASE PORTION AND EXTENDING UPWARDLY THROUGH THE INTERIOR OF SAID REFRACTOR TO RELEASABLY ENGAGE SAID SECOND REFRACTOR RING TO CLAMP THE REFRACTOR IN PLACE AND TO PREVENT UPWARD MOVEMENT OF SAID REFLECTOR.
Claim 2
Dependent Claim
137 words
A POST TOP LIGHTING UNIT INCLUDING, POST TOP ENGAGING ADAPTOR MEANS, A TUBULAR BASE PORTION ATTACHED TO SAID POST TOP ADAPTOR MEANS AND HAVING AN OPEN TOP AND BOTTOM, SAID BASE PORTION INCLUDING A FIRST REFRACTOR RING ON ITS UPPER END, A TUBULAR REFRACTOR HAVING A LOWER END ENGAGING SAID FIRST REFRACTOR RING AND EXTENDING GENERALLY UPWARD THEREFROM, A SECOND REFRACTOR RING ENGAGING THE UPPER EDGE OF SAID REFRACTOR, AN INVERTED DISHED REFLECTOR HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID REFRACTOR, RELEASABLE ATTACHMENT MEANS FOR MOUNTING SAID REFLECTOR ON SAID SECOND REFRACTOR RING, A PLURALITY OF SPACED APART ROD-LIKE MEMBERS COUPLED TO SAID BASE PORTION AND EXTENDING UPWARDLY THROUGH THE INTERIOR OF SAID REFRACTOR TO RELEASABLY ENGAGE SAID SECOND REFRACTOR RING TO CLAMP THE REFRACTOR IN PLACE AND TO PREVENT UPWARD MOVEMENT OF SAID REFLECTOR.
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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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |