Patent US4847843A successfully refreshed from Google Patents.
Patent US3080476A successfully refreshed from Google Patents.
US3080476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent lighting fixture
Assignee: JOHN C VIRDEN CO
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Filing: 1960-02-25
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Granted: 1963-03-05
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Expires: 1980-02-25
Abstract
No abstract record available.
Inventors
- 👤 Edward H Golko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:05
CPC Classifications
F; F21; F21V; F21V19/00; F21V19/0075; F21V19/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A LIGHTING FIXTURE ASSEMBLY COMPRISING AN ELONGATED CHANNEL HAVING A BOTTOM AND SUBSTANTIALLY PARALLEL SIDES EXTENDING SUBSTANTIALLY NORMAL TO SAID BOTTOM, A BRACKET ASSEMBLY HAVING A SIDE PORTION ADJACENT TO EACH OF THE SIDES OF SAID CHANNEL, SAID BRACKET ASSEMBLY BEING MOVABLE BETWEEN AN OPERATIVE POSITION AND A FOLDED POSITION, AN ELONGATED NOTCH FORMED IN EACH SIDE PORTION OF SAID BRACKET ASSEMBLY, EACH PROVIDING OPPOSED SIDE EDGES AND AT LEAST ONE END EDGE, SAID NOTCHES AND OPPOSED EDGES EXTENDING SUBSTANTIALLY LONGITUDINALLY OF SAID CHANNEL WHEN SAID BRACKET ASSEMBLY IS IN SAID OPERATIVE POSITION AND SUBSTANTIALLY NORMAL TO SAID BOTTOM WHEN SAID BRACKET ASSEMBLY IS IN SAID FOLDED POSITION, A PROJECTION ON EACH OF SAID SIDES OF SAID CHANNEL HAVING A LENGTH NORMAL TO SAID BOTTOM SUBSTANTIALLY EQUAL TO THE SPACING BETWEEN SAID SIDE EDGES ADJACENT TO THE ASSOCIATED END EDGE, SAID PROJECTIONS ENGAGING THE OPPOSED SIDE EDGES AND THE END EDGE OF THE ASSOCIATED NOTCHES WHEN SAID BRACKET IS IN SAID OPERATIVE POSITION AND BEING SPACED FROM THE END EDGE OF SUCH ASSOCIATED NOTCH WHEN SAID BRACKET ASSEMBLY
Claim 2
Dependent Claim
178 words
A LIGHTING FIXTURE ASSEMBLY COMPRISING AN ELONGATED CHANNEL HAVING A BOTTOM AND SUBSTANTIALLY PARALLEL SIDES EXTENDING SUBSTANTIALLY NORMAL TO SAID BOTTOM, A BRACKET ASSEMBLY HAVING A SIDE PORTION ADJACENT TO EACH OF THE SIDES OF SAID CHANNEL, SAID BRACKET ASSEMBLY BEING MOVABLE BETWEEN AN OPERATIVE POSITION AND A FOLDED POSITION, AN ELONGATED NOTCH FORMED IN EACH SIDE PORTION OF SAID BRACKET ASSEMBLY, EACH PROVIDING OPPOSED SIDE EDGES AND AT LEAST ONE END EDGE, SAID NOTCHES AND OPPOSED EDGES EXTENDING SUBSTANTIALLY LONGITUDINALLY OF SAID CHANNEL WHEN SAID BRACKET ASSEMBLY IS IN SAID OPERATIVE POSITION AND SUBSTANTIALLY NORMAL TO SAID BOTTOM WHEN SAID BRACKET ASSEMBLY IS IN SAID FOLDED POSITION, A PROJECTION ON EACH OF SAID SIDES OF SAID CHANNEL HAVING A LENGTH NORMAL TO SAID BOTTOM SUBSTANTIALLY EQUAL TO THE SPACING BETWEEN SAID SIDE EDGES ADJACENT TO THE ASSOCIATED END EDGE, SAID PROJECTIONS ENGAGING THE OPPOSED SIDE EDGES AND THE END EDGE OF THE ASSOCIATED NOTCHES WHEN SAID BRACKET IS IN SAID OPERATIVE POSITION AND BEING SPACED FROM THE END EDGE OF SUCH ASSOCIATED NOTCH WHEN SAID BRACKET ASSEMBLY
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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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |