Patent US3243650A successfully refreshed from Google Patents.
US3243650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous ionization of flash lamps
Assignee: Individual
•
Filing: 1964-01-15
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Granted: 1966-03-29
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Expires: 1984-01-15
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Hawkins
- 👤 James R Dearman
- 👤 William F Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:00
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A LAMP CIRCUIT COMPRISING AT LEAST TWO LAMPS, EACH HAVING A FIRST AND A SECOND TERMINAL; MEANS CONNECTING THE FIRST TERMINALS OF EACH OF SAID LAMPS TO A COMMON LEAD; A FIRST SOURCE OF VOLTAGE HAVING THIRD AND FOURTH TERMINALS; SEPARATE CONNECTION MEANS FROM THE SECOND TERMINAL OF EACH LAMP TO THE THIRD TERMINAL OF SAID FIRST SOURCE OF VOLTAGE; MEANS CONNECTING THE FOURTH TERMINAL TO SAID COMMON LEAD; A SECOND SOURCE OF VOLTAGE HAVING FIFTH AND SIXTH TERMINALS; SEPARATE ISOLATION CIRCUIT MEANS CONNECTING THE SECOND TERMINAL OF EACH LAMP TO SAID FIFTH TERMINAL OF THE SECOND SOURCE; MEANS CONNECTING THE SIXTH TERMINAL OF SAID SECOND SOURCE TO SAID COMMON LEAD; AND A THIRD SOURCE OF VOLTAGE CONNECTED IN PARALLEL WITH SAID WITH SAID FIRST SOURCE OF VOLTAGE SO AS TO TRIGGER THE IONIZATION OF SAID LAMPS.
Claim 2
Dependent Claim
137 words
A LAMP CIRCUIT COMPRISING AT LEAST TWO LAMPS, EACH HAVING A FIRST AND A SECOND TERMINAL; MEANS CONNECTING THE FIRST TERMINALS OF EACH OF SAID LAMPS TO A COMMON LEAD; A FIRST SOURCE OF VOLTAGE HAVING THIRD AND FOURTH TERMINALS; SEPARATE CONNECTION MEANS FROM THE SECOND TERMINAL OF EACH LAMP TO THE THIRD TERMINAL OF SAID FIRST SOURCE OF VOLTAGE; MEANS CONNECTING THE FOURTH TERMINAL TO SAID COMMON LEAD; A SECOND SOURCE OF VOLTAGE HAVING FIFTH AND SIXTH TERMINALS; SEPARATE ISOLATION CIRCUIT MEANS CONNECTING THE SECOND TERMINAL OF EACH LAMP TO SAID FIFTH TERMINAL OF THE SECOND SOURCE; MEANS CONNECTING THE SIXTH TERMINAL OF SAID SECOND SOURCE TO SAID COMMON LEAD; AND A THIRD SOURCE OF VOLTAGE CONNECTED IN PARALLEL WITH SAID WITH SAID FIRST SOURCE OF VOLTAGE SO AS TO TRIGGER THE IONIZATION OF SAID LAMPS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |