US3814971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fill gas mixture for glow lamps
Assignee: General Electric Co
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Filing: 1973-03-01
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Granted: 1974-06-04
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Expires: 1993-03-01
Abstract
Abstract A glow lamp for use as a circuit component or indicator lamp comprising an envelope, electrodes, lead-in wires connected to the electrodes and sealed in said envelope, the envelope contains a Penning mixture of neon and xenon with the xenon varying from 0.001 percent to 1.0 percent by volume. The use of the xenon-neon Penning mixture increases the life of the lamp without substantially increasing breakdown voltage.
Inventors
- 👤 A Bhattacharya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:30
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/12; H01J61/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
22 words
A glow discharge device as claimed in claim 1 wherein said xenon may vary between 0.001 percent to 0.1 percent by volume.
Claim 2
Dependent Claim
21 words
A glow discharge device as claimed in claim 1 wherein said xenon may vary between 0.01% to 0.1 percent by volume.
Claim 3
Dependent Claim
17 words
A glow discharge device as claimed in claim 1 wherein said xenon equals 0.1 percent by volume.
Claim 4
Dependent Claim
17 words
A glow discharge device as claimed in claim 1 wherein said xenon equals 0.01 percent by volume.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |