US3262043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic photoflash apparatus
Assignee: Robert Bosch Elektronik GmbH
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Filing: 1964-07-14
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Granted: 1966-07-19
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Frank-Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/26; H05B41/28; H05B41/282; H05B41/30; H05B41/32; Y; Y02; Y02B; Y02B20/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN ELECTRONIC PHOTOFLASH APPARATUS WITH A DISCHARGED CIRCUIT INCLUDING A GAS DISCHARGE TUBE AND A STORAGE CAPACITOR DISCHARGEABLE ACROSS THE GAS DISCHARGE TUBE, IN COMBINATION, ELECTRIC ENERGY SUPPLY MEANS INCLUDING DIRECT CURRENT CONVERTER MEANS FURNISHING IN RESPONSE TO DIRECT CURRENT ENERGIZATION MEANS FURNISHING IN RESPONSE TO DETERMINED ELEVATED AMPLITUDE FOR CHARGING THE STORAGE CAPACITOR AND COMPRISING AN OSCILLATORY CIRCUIT WITH AT LEAST ONE CONTROLLING CIRCUIT PORTION THEREIN FOR PRODUCING SAID ALTERNATING VOLTAGE DEPENDING UPON THE OPERATIVENESS OF SAID CONTROLLING CIRCUIT PORTION; AND REGULATOR CIRCUIT MEANS FOR AUTOMATICALLY INTERRUPTING THE ALTERNATING VOLTAGE OUTPUT OF SAID DIRECT CURRENT CONVERTER MEANS WHEN SAID STORAGE CAPACITOR IS CHARGED TO A PREDETERMINED POTANTIAL AND INCLUDING AUXILIARY CAPACITOR MEANS CONNECTED WITH SAID DIRECT CURRENT CONVERTER MEANS FOR BEING CHARGED THEREBY SIMULTANEOUSLY WITH BUT INDEPENDENTLY FROM SAID STORAGE CAPACITOR, AND DISCHARGE CIRCUIT MEANS CONNECTED WITH SAID AUXILIARY CAPACITOR MEANS AND INCLUDING MEANS
Claim 2
Dependent Claim
146 words
IN AN ELECTRONIC PHOTOFLASH APPARATUS WITH A DISCHARGED CIRCUIT INCLUDING A GAS DISCHARGE TUBE AND A STORAGE CAPACITOR DISCHARGEABLE ACROSS THE GAS DISCHARGE TUBE, IN COMBINATION, ELECTRIC ENERGY SUPPLY MEANS INCLUDING DIRECT CURRENT CONVERTER MEANS FURNISHING IN RESPONSE TO DIRECT CURRENT ENERGIZATION MEANS FURNISHING IN RESPONSE TO DETERMINED ELEVATED AMPLITUDE FOR CHARGING THE STORAGE CAPACITOR AND COMPRISING AN OSCILLATORY CIRCUIT WITH AT LEAST ONE CONTROLLING CIRCUIT PORTION THEREIN FOR PRODUCING SAID ALTERNATING VOLTAGE DEPENDING UPON THE OPERATIVENESS OF SAID CONTROLLING CIRCUIT PORTION; AND REGULATOR CIRCUIT MEANS FOR AUTOMATICALLY INTERRUPTING THE ALTERNATING VOLTAGE OUTPUT OF SAID DIRECT CURRENT CONVERTER MEANS WHEN SAID STORAGE CAPACITOR IS CHARGED TO A PREDETERMINED POTANTIAL AND INCLUDING AUXILIARY CAPACITOR MEANS CONNECTED WITH SAID DIRECT CURRENT CONVERTER MEANS FOR BEING CHARGED THEREBY SIMULTANEOUSLY WITH BUT INDEPENDENTLY FROM SAID STORAGE CAPACITOR, AND DISCHARGE CIRCUIT MEANS CONNECTED WITH SAID AUXILIARY CAPACITOR MEANS AND INCLUDING MEANS
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |