Patent US3131871A successfully refreshed from Google Patents.
US3131871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination rail and luminaire
Assignee: General Electric Co
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Filing: 1960-11-28
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Granted: 1964-05-05
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Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 John P Foulds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:51
CPC Classifications
F; F21; F21S; F21S4/00; F21S4/20; E; E01; E01F; E01F9/00; E01F9/60; E01F9/658; E01F9/669; E04; E04F; E04F11/00; E04F11/18; E04F2011/1868; E04F2011/1872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A RAIL LIGHTING DEVICE COMPRISING AN ELONGATED HOLLOW MEMBER HAVING AN OPEN TOP CLOSED BY A READILY REMOVABLE COVER MEMBER, MEANS SUPPORTING SAID HOLLOW MEMBER IN A PREDETERMINED POSITION ABOVE A SURFACE, MEANS FOR RIGIDLY SUPPORTING SAID COVER MEMBER AGAINST INWARD DEFLECTION SECURED TO SAID HOLLOW MEMBER AND ABUTTING SAID COVER MEMBER, SAID LAST MENTIONED MEANS DEFINING AN ELONGATED PARTITION WITHIN SAID MEMBER DIVIDING THE INTERIOR THEREOF LONGITUDINALLY INTO FIRST AND SECOND ELONGATED WALLED COMPARTMENTS, ELECTRIC LAMP AND TRANSMIT ELECTRIC POWER THERETO, SAID SOCKET MEANS BEING MOUNTED ON SAID PARTITION TO BE LOCATED WITHIN ONE OF SAID COMPARTMENTS FOR SUPPORTING AN ELONGATED LAMP IN A PREDETERMINED POSITION THEREIN, MEANS DEFINING AN ELONGATED LIGHT-TRANSMITTING SECTION IN A SIDE WALL OF SAID HOLLOW MEMBER FOR TRANSMISSION OF LIGHT FROM A LAMP IN SAID SOCKETS COMPRISING AN ELONGATED OPENING IN SAID WALL, A LIGHT TRANSMITTING PLATE DISPOSED OVER SAID ELONGATED OPENING, AND MEANS FOR DETACHABLY SECURING SAID PLATE IN POSITION OVER SAID ELONGATED OPENING, AND POWER SUPPLY MEANS FOR CONNECTION TO SAID SOCKETS, INCLUDING WIRING DISPOSED WITHIN ONE OF SAID COMPARTMENTS.
Claim 2
Dependent Claim
178 words
A RAIL LIGHTING DEVICE COMPRISING AN ELONGATED HOLLOW MEMBER HAVING AN OPEN TOP CLOSED BY A READILY REMOVABLE COVER MEMBER, MEANS SUPPORTING SAID HOLLOW MEMBER IN A PREDETERMINED POSITION ABOVE A SURFACE, MEANS FOR RIGIDLY SUPPORTING SAID COVER MEMBER AGAINST INWARD DEFLECTION SECURED TO SAID HOLLOW MEMBER AND ABUTTING SAID COVER MEMBER, SAID LAST MENTIONED MEANS DEFINING AN ELONGATED PARTITION WITHIN SAID MEMBER DIVIDING THE INTERIOR THEREOF LONGITUDINALLY INTO FIRST AND SECOND ELONGATED WALLED COMPARTMENTS, ELECTRIC LAMP AND TRANSMIT ELECTRIC POWER THERETO, SAID SOCKET MEANS BEING MOUNTED ON SAID PARTITION TO BE LOCATED WITHIN ONE OF SAID COMPARTMENTS FOR SUPPORTING AN ELONGATED LAMP IN A PREDETERMINED POSITION THEREIN, MEANS DEFINING AN ELONGATED LIGHT-TRANSMITTING SECTION IN A SIDE WALL OF SAID HOLLOW MEMBER FOR TRANSMISSION OF LIGHT FROM A LAMP IN SAID SOCKETS COMPRISING AN ELONGATED OPENING IN SAID WALL, A LIGHT TRANSMITTING PLATE DISPOSED OVER SAID ELONGATED OPENING, AND MEANS FOR DETACHABLY SECURING SAID PLATE IN POSITION OVER SAID ELONGATED OPENING, AND POWER SUPPLY MEANS FOR CONNECTION TO SAID SOCKETS, INCLUDING WIRING DISPOSED WITHIN ONE OF SAID COMPARTMENTS.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |