US3315115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glow cathode indicator tube having memory
Assignee: Unisys Corp
•
Filing: 1964-07-08
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Granted: 1967-04-18
•
Expires: 1984-07-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Maloney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:51
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
44 words
A COLD CATHODE GASEOUS GLOW TUBE COMPRISING A GAS-FILLED ENVELOPE, AN ANODE ELECTRODE, A PLURALITY OF GLOW CATHODE ELECTRODES WITHIN SAID ENVELOPE IN OPERATIVE RELATION WITH SAID ANODE, AND A MULTIPLE ELECTRODE GAS-FILLED MEMORY CELL COUPLED TO EACH GLOW CATHODE ELECTRODE INSIDE SAID ENVELOPE.
Claim 2
Dependent Claim
44 words
A COLD CATHODE GASEOUS GLOW TUBE COMPRISING A GAS-FILLED ENVELOPE, AN ANODE ELECTRODE, A PLURALITY OF GLOW CATHODE ELECTRODES WITHIN SAID ENVELOPE IN OPERATIVE RELATION WITH SAID ANODE, AND A MULTIPLE ELECTRODE GAS-FILLED MEMORY CELL COUPLED TO EACH GLOW CATHODE ELECTRODE INSIDE SAID ENVELOPE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |