US3099404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recessed lighting fixtures
Assignee: MARKSTONE Manufacturing CO
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Filing: 1961-11-13
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Granted: 1963-07-30
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Kaufman Jack
- 👤 Alvin R Lund
- 👤 Martin W Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:04
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN A RECESSED LIGHTING FIXTURE: A TOP PLATE HAVING A CENTRAL APERTURE; A JUNCTION BOX HAVING A CONTINUOUS PERIMETRICAL WALL; MEANS DETACHABLY MOUNTING SAID JUNCTION BOX ON THE TOP PLATE WITH SAID PERIMETRICAL WALL SUR ROUNDING SAID APERTURE; A CONTINUOUS SIDEWALL SECURED TO THE MARGIN OF SAID TOP PLATE AND EXTENDING AWAY FORM SAID JUNCTION BOX, SAID SIDEWALL COOPERATING WITH THE TOP PLATE TO DEFINE A HOUSING WHICH IS OF UNIFORM CROSS SECTION IN PLANES PARALLEL TO THE TOP PLATE; A SOCKET PLATE CARRYING A LAMP SOCKET; AND INTERENGAGING MEANS ON SAID SIDEWALL AND ON SAID SOCKET PLATE MOVABLY SECURING SAID PLATE SUBSTANTIALLY NORMAL TO SAID SIDEWALL AND SELECTIVELY AT ANY OF A PLURALITY OF POSITIONS IN SAID HOUSING, SAID INTERENGAGING MEANS INCLUDING A LATCH MEMBER ON THE SOCKET PLATE WHICH IS RADIALLY MOVABLE.
Claim 2
Dependent Claim
134 words
IN A RECESSED LIGHTING FIXTURE: A TOP PLATE HAVING A CENTRAL APERTURE; A JUNCTION BOX HAVING A CONTINUOUS PERIMETRICAL WALL; MEANS DETACHABLY MOUNTING SAID JUNCTION BOX ON THE TOP PLATE WITH SAID PERIMETRICAL WALL SUR ROUNDING SAID APERTURE; A CONTINUOUS SIDEWALL SECURED TO THE MARGIN OF SAID TOP PLATE AND EXTENDING AWAY FORM SAID JUNCTION BOX, SAID SIDEWALL COOPERATING WITH THE TOP PLATE TO DEFINE A HOUSING WHICH IS OF UNIFORM CROSS SECTION IN PLANES PARALLEL TO THE TOP PLATE; A SOCKET PLATE CARRYING A LAMP SOCKET; AND INTERENGAGING MEANS ON SAID SIDEWALL AND ON SAID SOCKET PLATE MOVABLY SECURING SAID PLATE SUBSTANTIALLY NORMAL TO SAID SIDEWALL AND SELECTIVELY AT ANY OF A PLURALITY OF POSITIONS IN SAID HOUSING, SAID INTERENGAGING MEANS INCLUDING A LATCH MEMBER ON THE SOCKET PLATE WHICH IS RADIALLY MOVABLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |