US3336472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the safety lighting of rooms or open-air installations
Assignee: FA THEO BENNING
•
Filing: 1965-08-20
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Granted: 1967-08-15
•
Expires: 1985-08-20
Abstract
No abstract record available.
Inventors
- 👤 Steinig Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:42
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21S9/022; H; H02; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/062; H02J9/065; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/285; H05B41/2851; H05B41/2853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A DEVICE FOR THE SAFETY LIGHTING OF ROOMS OR OPEN-AIR INSTALLATIONS WITH CAN BE SWITCHED ON OR SWITCHES ON AUTOMATICALLY IN THE EVENT OF A MAINS FAILURE, COMPRISING A LIGHT FIXTURE HAVING SOCKETS AT OPPOSITELY DISPOSED ENDS SPACED APART FROM EACH OTHER AND ADAPTED TO RECEIVE A CONVENTIONAL FLUOROCENT BULB OF ANY LENGTH IN SAID SOCKETS AND FITTING SAID LIGHT FIXTURE, AN ELONGATED HOUSING OF LIGHT PERMEABLE MATERIAL, CAP MEANS HAVING CONTACT PINS SECURED TO THE OPPOSITE ENDS OF SAID ELONGATED HOUSING, SAID CONTACT PINS BEING RECEIVED IN SAID SOCKETS AND OPERATIVELY CONNECTED WITH D.C. MAINS, A FLUORESCENT BULB SHORTER THAN AND RECEIVED IN SAID ELONGATED HOUSING, MOUNTS DISPOSED IN SAID ELONGATED HOUSING SPACED APART FROM EACH OTHER AT A DISTANCE EQUAL TO THE LENGTH OF AND RECEIVING SAID FLUORESCENT BULB, ELECTRICAL CIRCUIT MEANS DISPOSED IN SAID ELONGATED HOUSING AND INCLUDING MEANS FOR RENDERING OPERATIVE SAID FLUORESCENT BULB IN RESPONSE TO A FAILURE OF SAID D.C. MAINS.
Claim 2
Independent Claim
157 words
A DEVICE FOR THE SAFETY LIGHTING OF ROOMS OR OPEN-AIR INSTALLATIONS WITH CAN BE SWITCHED ON OR SWITCHES ON AUTOMATICALLY IN THE EVENT OF A MAINS FAILURE, COMPRISING A LIGHT FIXTURE HAVING SOCKETS AT OPPOSITELY DISPOSED ENDS SPACED APART FROM EACH OTHER AND ADAPTED TO RECEIVE A CONVENTIONAL FLUOROCENT BULB OF ANY LENGTH IN SAID SOCKETS AND FITTING SAID LIGHT FIXTURE, AN ELONGATED HOUSING OF LIGHT PERMEABLE MATERIAL, CAP MEANS HAVING CONTACT PINS SECURED TO THE OPPOSITE ENDS OF SAID ELONGATED HOUSING, SAID CONTACT PINS BEING RECEIVED IN SAID SOCKETS AND OPERATIVELY CONNECTED WITH D.C. MAINS, A FLUORESCENT BULB SHORTER THAN AND RECEIVED IN SAID ELONGATED HOUSING, MOUNTS DISPOSED IN SAID ELONGATED HOUSING SPACED APART FROM EACH OTHER AT A DISTANCE EQUAL TO THE LENGTH OF AND RECEIVING SAID FLUORESCENT BULB, ELECTRICAL CIRCUIT MEANS DISPOSED IN SAID ELONGATED HOUSING AND INCLUDING MEANS FOR RENDERING OPERATIVE SAID FLUORESCENT BULB IN RESPONSE TO A FAILURE OF SAID D.C. MAINS.
References Cited (Backward Citations)
US2389762A
Cited
US2760053A
Cited
US3108908A
Cited
US3233091A
Cited
US3222513A
Cited
US3249749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |