US3255354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultraviolet radiation detector
Assignee: Electronics Corp of America
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Filing: 1963-03-22
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Granted: 1966-06-07
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Expires: 1983-03-22
Abstract
No abstract record available.
Inventors
- 👤 Phillip J Cade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:57
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A RADIATION SENSITIVE TUBE COMPRISING AN ENVELOPE TRANSPARENT TO ULTRAVIOLET RADIATION, A PAIR OF MAIN ELECTRODES MOUNTED WITHIN SAID ENVELOPE IN SPACED RELATION, EACH SAID MAIN ELECTRODE HAVING A STRAIGHT PORTION DISPOSED PARELLEL TO THE CORRESPONDING PORTION OF THE OTHER MAIN ELECTRODE, MEANS TO CONNECT SAID MAIN ELECTRODES TO A SOURCE OF ELECTRIC POTENTIAL TO CREATE A FIRST ELECTRIC FIELD BETWEEN SAID STRAIGHT PORTIONS OF SAID MAIN ELECTRODES, A GAS IN SAID ENVELOPE, THE PRINCIPAL CONSTITUENT OF WHICH IS HYDROGEN, SAID GAS BEING ADAPTED TO BE IONIZED UPON PRODUCTION OF A PHOTOELECTRON FROM ONE OF SAID MAIN ELECTRODES IN RESPONSE TO IMPINGING ULTRAVIOLET RADIATION TO PRODUCE AN AVALANCHE BREAKDOWN OF SAID FIRST ELECTRIC FIELD BETWEEN SAID MAIN ELECTRODES, A PAIR OF AUXILIARY ELECTRODES DISPOSED IN SAID ENVELOPE, THE END PORTIONS OF SAID AUXILIARY ELECTRODES BEING SPACED A PREDETERMINED DISTANCE APART TO DEFINE A GAP, MEANS TO CONNECT SAID AUXILIARY ELECTRODES TO A SOURCE OF ELECTRIC POTENTIAL TO CREATE A SECOND ELECTRIC FIELD ACROSS SAID GAP,
Claim 2
Dependent Claim
165 words
A RADIATION SENSITIVE TUBE COMPRISING AN ENVELOPE TRANSPARENT TO ULTRAVIOLET RADIATION, A PAIR OF MAIN ELECTRODES MOUNTED WITHIN SAID ENVELOPE IN SPACED RELATION, EACH SAID MAIN ELECTRODE HAVING A STRAIGHT PORTION DISPOSED PARELLEL TO THE CORRESPONDING PORTION OF THE OTHER MAIN ELECTRODE, MEANS TO CONNECT SAID MAIN ELECTRODES TO A SOURCE OF ELECTRIC POTENTIAL TO CREATE A FIRST ELECTRIC FIELD BETWEEN SAID STRAIGHT PORTIONS OF SAID MAIN ELECTRODES, A GAS IN SAID ENVELOPE, THE PRINCIPAL CONSTITUENT OF WHICH IS HYDROGEN, SAID GAS BEING ADAPTED TO BE IONIZED UPON PRODUCTION OF A PHOTOELECTRON FROM ONE OF SAID MAIN ELECTRODES IN RESPONSE TO IMPINGING ULTRAVIOLET RADIATION TO PRODUCE AN AVALANCHE BREAKDOWN OF SAID FIRST ELECTRIC FIELD BETWEEN SAID MAIN ELECTRODES, A PAIR OF AUXILIARY ELECTRODES DISPOSED IN SAID ENVELOPE, THE END PORTIONS OF SAID AUXILIARY ELECTRODES BEING SPACED A PREDETERMINED DISTANCE APART TO DEFINE A GAP, MEANS TO CONNECT SAID AUXILIARY ELECTRODES TO A SOURCE OF ELECTRIC POTENTIAL TO CREATE A SECOND ELECTRIC FIELD ACROSS SAID GAP,
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |