US3290941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge devices with automatic temperature control
Assignee: Individual
•
Filing: 1963-05-21
•
Granted: 1966-12-13
•
Expires: 1983-05-21
Abstract
No abstract record available.
Inventors
- 👤 David M Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:38
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A CHARGED PARTICLE DISCHARGE DEVICE COMPRISING: A MEMBER FOR GENERATING THE CHARGED PARTICLES, FIRST MEANS FOR HEATING SAID MEMBER AND A DIELECTRIC LIGHT PIPE FOR TRANSMITTING RADIATION FROM THE SAID MEMBER, IN COMBINATION WITH SECOND MEANS FOR HEATING SAID LIGHT PIPE TO PREVENT MATERIAL FROM DEPOSITING THEREON.
Claim 2
Dependent Claim
47 words
A CHARGED PARTICLE DISCHARGE DEVICE COMPRISING: A MEMBER FOR GENERATING THE CHARGED PARTICLES, FIRST MEANS FOR HEATING SAID MEMBER AND A DIELECTRIC LIGHT PIPE FOR TRANSMITTING RADIATION FROM THE SAID MEMBER, IN COMBINATION WITH SECOND MEANS FOR HEATING SAID LIGHT PIPE TO PREVENT MATERIAL FROM DEPOSITING THEREON.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |