Patent US3358474A successfully refreshed from Google Patents.
US3358474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space lighting fittings
Assignee: Individual
•
Filing: 1966-03-16
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Granted: 1967-12-19
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Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Liesse Maurice Etienne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:12
CPC Classifications
F; F23; F23Q; F23Q3/00; F23Q3/004; F21; F21V; F21V37/00; F21V37/0004; F21V37/0041; F21V37/0054; F23N; F23N5/00; F23N5/20; F23N5/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SPACE LIGHTING FITTING COMPRISING AT LEAST ONE GAS LIGHTING BURNER, AN ELECTRIC SPARK IGNITION DEVICE ASSOCIATED WITH SAID BURNER, A GAS SUPPLY PIPE CONNECTED TO SAID BURNER, A GAS COCK IN SAID PIPE, AN ELECTRIC IGNITION CIRCUIT MOUNTED IN COMBINATION WITH SAID COCK, AN IGNITION VOLTAGE GENERATOR IN THE FORM OF A LOW-VOLTAGE ELECTRIC SUPPLY CIRCUIT ELECTRICALLY CONNECTED TO SAID FIRST CIRCUIT AND COOPERATING WITH A FLAME DETECTOR, AND AN OVER-ALL SWITCH OPERABLE TO ACTUATE SIMULTANEOUSLY THE SAID LOW-VOLTAGE SUPPLY CIRCUIT AND SAID COCK, SAID FLAME DETECTOR EMITTING A SIGNAL IN THE ABSENCE OF FLAME WHICH IS BLOCKED IN THE PRESENCE OF FLAME AND IS APPLIED TO AN IGNITION RELAY PRECEDED BY A CONTROL AMPLIFIER COMPRISING AN INPUT STAGE
Claim 2
Dependent Claim
120 words
A SPACE LIGHTING FITTING COMPRISING AT LEAST ONE GAS LIGHTING BURNER, AN ELECTRIC SPARK IGNITION DEVICE ASSOCIATED WITH SAID BURNER, A GAS SUPPLY PIPE CONNECTED TO SAID BURNER, A GAS COCK IN SAID PIPE, AN ELECTRIC IGNITION CIRCUIT MOUNTED IN COMBINATION WITH SAID COCK, AN IGNITION VOLTAGE GENERATOR IN THE FORM OF A LOW-VOLTAGE ELECTRIC SUPPLY CIRCUIT ELECTRICALLY CONNECTED TO SAID FIRST CIRCUIT AND COOPERATING WITH A FLAME DETECTOR, AND AN OVER-ALL SWITCH OPERABLE TO ACTUATE SIMULTANEOUSLY THE SAID LOW-VOLTAGE SUPPLY CIRCUIT AND SAID COCK, SAID FLAME DETECTOR EMITTING A SIGNAL IN THE ABSENCE OF FLAME WHICH IS BLOCKED IN THE PRESENCE OF FLAME AND IS APPLIED TO AN IGNITION RELAY PRECEDED BY A CONTROL AMPLIFIER COMPRISING AN INPUT STAGE
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |