US3283144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable light
Assignee: Consolidated Electronic Equipment Co Ltd
•
Filing: 1964-05-15
•
Granted: 1966-11-01
•
Expires: 1984-05-15
Abstract
No abstract record available.
Inventors
- 👤 Richard H Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:24
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/285; H05B41/2851; H05B41/2853; F; F21; F21L; F21L14/00; F21Y; F21Y2103/00; Y; Y10; Y10S; Y10S315/00; Y10S315/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PORTABLE LIGHTING UNIT COMPRISING AN ELONGATED FLUORESCENT LAMP, A METAL REFLECTOR LOCATED BEHIND THE LAMP AND HAVING A FRONT SURFACE FACING THE LAMP FOR REFLECTING LIGHT FROM THE LAMP AND A REAR SURFACE FACING AWAY FROM THE LAMP, A COVER SECURED TO THE REAR SURFACE OF THE REFLECTOR TO DEFINE AN ENCLOSURE THEREWITH, SUBSTANTIALLY THE WHOLE OF THE FRONT SURFACE OF THE REFLECTOR BEING UNCOVERED AND EXPOSED TO THE AMBIENT AIR FOR COOLING THEREBY, AN INVERTER CIRCUIT CONNECTED TO THE LAMP FOR SUPPLYING ALTERNATING CURRENT THERETO WHEN THE CIRCUIT IS CONNECTED TO A DIRECT CURRENT SOURCE, THE CIRCUIT INCLUDING ELECTRICAL COMPONENTS WITHIN SAID ENCLOSURE AND A TRANSISTOR MOUNTED ON THE FRONT SURFACE OF THE REFLECTOR BEHIND THE LAMP AND IN INTIMATE THERMAL CONTACT WITH THE REFLECTOR WHEREBY THE REFLECTOR
Claim 2
Dependent Claim
130 words
A PORTABLE LIGHTING UNIT COMPRISING AN ELONGATED FLUORESCENT LAMP, A METAL REFLECTOR LOCATED BEHIND THE LAMP AND HAVING A FRONT SURFACE FACING THE LAMP FOR REFLECTING LIGHT FROM THE LAMP AND A REAR SURFACE FACING AWAY FROM THE LAMP, A COVER SECURED TO THE REAR SURFACE OF THE REFLECTOR TO DEFINE AN ENCLOSURE THEREWITH, SUBSTANTIALLY THE WHOLE OF THE FRONT SURFACE OF THE REFLECTOR BEING UNCOVERED AND EXPOSED TO THE AMBIENT AIR FOR COOLING THEREBY, AN INVERTER CIRCUIT CONNECTED TO THE LAMP FOR SUPPLYING ALTERNATING CURRENT THERETO WHEN THE CIRCUIT IS CONNECTED TO A DIRECT CURRENT SOURCE, THE CIRCUIT INCLUDING ELECTRICAL COMPONENTS WITHIN SAID ENCLOSURE AND A TRANSISTOR MOUNTED ON THE FRONT SURFACE OF THE REFLECTOR BEHIND THE LAMP AND IN INTIMATE THERMAL CONTACT WITH THE REFLECTOR WHEREBY THE REFLECTOR
References Cited (Backward Citations)
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Cited
US2668229A
Cited
FR1063421A
Cited
US2849598A
Cited
US2886699A
Cited
US3119048A
Cited
US3152764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |