Patent US1366024A successfully refreshed from Google Patents.
Patent US3087981A successfully refreshed from Google Patents.
US3087981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent luminaire
Assignee: McGraw Edison Co
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Filing: 1957-12-20
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Granted: 1963-04-30
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Expires: 1977-12-20
Abstract
No abstract record available.
Inventors
- 👤 Donald W Harling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:55
CPC Classifications
F; F21; F21V; F21V31/00; F21V17/00; F21V17/10; F21V17/20; F21V23/00; F21V23/02; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A LUMINAIRE FOR GASEOUS DISCHARGE LAMPS COMPRISING, IN COMBINATION, OUTER HOUSING MEANS, FIRST AND SECOND SPACED RAIL MEANS RIGIDLY ATTACHED TO SAID HOUSING MEANS, BALLAST MEANS DISPOSED BETWEEN SAID RAIL MEANS AND HAVING A SIDE THEREOF IN INTIMATE ENGAGEMENT WITH SAID HOUSING MEANS, AND QUICK ATTACHABLE AND DETACHABLE CLAMP MEANS FOR MAINTAINING SAID INTIMATE ENGAGEMENT BETWEEN SAID BALLAST MEANS AND SAID HOUSING MEANS, SAID CLAMP MEANS SLIDABLY SUPPORTED BY SAID RAIL MEANS FOR SLIDING MOVEMENT RELATIVE TO SAID RAIL MEANS AND SAID BALLAST MEANS, SAID CLAMP MEANS ENGAGING A SIDE OF SAID BALLAST MEANS OPPOSITE TO SAID SIDE IN ENGAGEMENT WITH SAID HOUSING MEANS SO THAT SAID CLAMP MEANS, WHEN ATTACHED, CONTINUOUSLY URGES SAID BALLAST MEANS INTO INTI-
Claim 2
Dependent Claim
118 words
A LUMINAIRE FOR GASEOUS DISCHARGE LAMPS COMPRISING, IN COMBINATION, OUTER HOUSING MEANS, FIRST AND SECOND SPACED RAIL MEANS RIGIDLY ATTACHED TO SAID HOUSING MEANS, BALLAST MEANS DISPOSED BETWEEN SAID RAIL MEANS AND HAVING A SIDE THEREOF IN INTIMATE ENGAGEMENT WITH SAID HOUSING MEANS, AND QUICK ATTACHABLE AND DETACHABLE CLAMP MEANS FOR MAINTAINING SAID INTIMATE ENGAGEMENT BETWEEN SAID BALLAST MEANS AND SAID HOUSING MEANS, SAID CLAMP MEANS SLIDABLY SUPPORTED BY SAID RAIL MEANS FOR SLIDING MOVEMENT RELATIVE TO SAID RAIL MEANS AND SAID BALLAST MEANS, SAID CLAMP MEANS ENGAGING A SIDE OF SAID BALLAST MEANS OPPOSITE TO SAID SIDE IN ENGAGEMENT WITH SAID HOUSING MEANS SO THAT SAID CLAMP MEANS, WHEN ATTACHED, CONTINUOUSLY URGES SAID BALLAST MEANS INTO INTI-
References Cited (Backward Citations)
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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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |