US3476970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hollow cathode electron discharge device for generating spectral radiation
Assignee: Westinghouse Electric Corp
•
Filing: 1966-09-12
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Granted: 1969-11-04
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Wallace Gillies
- 👤 George K Yamasaki
- 👤 J C Burger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:47
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/04; H01J17/06; H01J17/066; H01J2893/00; H01J2893/0064; H01J2893/0065; H01J2893/0066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2433809A
Cited
US3089054A
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US3205388A
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US3242371A
Cited
US3183393A
Cited
US3264511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |