US3108906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge tube
Assignee: US Philips Corp
•
Filing: 1959-05-22
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Granted: 1963-10-29
•
Expires: 1979-05-22
Abstract
No abstract record available.
Inventors
- 👤 Scharrer Erich
- 👤 Kossow Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:21
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/88; C; C03; C03C; C03C17/00; C03C17/22; H01B; H01B1/00; H01B1/14; H01B1/18; H01J19/00; C03C2217/00; C03C2217/20; C03C2217/29; C03C2218/00; C03C2218/10; C03C2218/11; H01J2229/00; H01J2229/88; H01J2229/882; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022; H01J2893/0023; Y; Y10; Y10T; Y10T428/00; Y10T428/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
AN ELECTRICAL DEVICE COMPRISING AN ENVELOPE HAVING WALL PORTIONS AND ON A WALL PORTION AN ADHERENT CONDUCTIVE COATING COMPRISING A MIXTURE OF GRAPHITE PARTICLES, AN ADHESIVE, AND A FILLER MATERIAL OF ZNO, THEREBY FORMING A COATING OF HIGH MOLECULAR WEIGHT AND GOOD ADHERENCE.
Claim 2
Dependent Claim
43 words
AN ELECTRICAL DEVICE COMPRISING AN ENVELOPE HAVING WALL PORTIONS AND ON A WALL PORTION AN ADHERENT CONDUCTIVE COATING COMPRISING A MIXTURE OF GRAPHITE PARTICLES, AN ADHESIVE, AND A FILLER MATERIAL OF ZNO, THEREBY FORMING A COATING OF HIGH MOLECULAR WEIGHT AND GOOD ADHERENCE.
References Cited (Backward Citations)
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Cited
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US2196128A
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US2177705A
Cited
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Cited
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Cited
US2699510A
Cited
US2740062A
Cited
GB735463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |