US3244923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Character representing glow discharge tube and system for selective excitation of the character representing electrodes thereof
Assignee: Friden Inc
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Filing: 1962-09-14
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Granted: 1966-04-05
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Expires: 1982-09-14
Abstract
No abstract record available.
Inventors
- 👤 Rankin A Milliken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:57
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J2893/00; H01J2893/0069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN INDICATOR TUBE COMPRISING: A FIRST GROUP OF CHARACTER-SHAPED INDICATOR CATHODES ADAPTED TO GLOW, A SECOND GROUP OF CHARACTER-SHAPED INDICATOR CATHODES ADAPTED TO GLOW, AND A COMBINED ANODE-EXCITATION SHIELD ELECTRODE ASSOCIATED WITH EACH OF SAID GROUPS OF CATHODES, EACH OF SAID COMBINED ANODE-EXCITATION SHIELD ELECTRODES AT LEAST PARTIALLY SURROUNDING ITS ASSOCIATED GROUP OF CATHODES, WHEREBY EACH OF SAID COMBINED ANODEEXCITATION SHIELD ELECTRODES IS ADAPTED TO EXCITE AT LEAST
Claim 2
Dependent Claim
68 words
AN INDICATOR TUBE COMPRISING: A FIRST GROUP OF CHARACTER-SHAPED INDICATOR CATHODES ADAPTED TO GLOW, A SECOND GROUP OF CHARACTER-SHAPED INDICATOR CATHODES ADAPTED TO GLOW, AND A COMBINED ANODE-EXCITATION SHIELD ELECTRODE ASSOCIATED WITH EACH OF SAID GROUPS OF CATHODES, EACH OF SAID COMBINED ANODE-EXCITATION SHIELD ELECTRODES AT LEAST PARTIALLY SURROUNDING ITS ASSOCIATED GROUP OF CATHODES, WHEREBY EACH OF SAID COMBINED ANODEEXCITATION SHIELD ELECTRODES IS ADAPTED TO EXCITE AT LEAST
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |