US3262013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated hollow cathode discharge device
Assignee: Lockheed Martin Corp
•
Filing: 1962-02-02
•
Granted: 1966-07-19
•
Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 Iii Richard J Allen
- 👤 Hugo L L Van Paassen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
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: 2
Claim 1
Independent Claim
94 words
A GAS DISCHARGE DEVICE COMPRISING A HOUSING; AN IONIZABLE GAS IN SAID HOUSING, SAID GAS BEING AT A SUBATMOSHPERIC PRESSURE; AN ANODE AND A CATHODE POSITIONED IN SPACED RELATIONSHIP IN SAID HOUSING, SAID CATHODE CONTAINING A CAVITY AND HAVING A PORTION PROVIDED WITH AT LEAST ONE APERTURE AND WITH A PLURALITY OF PERFORATIONS ADJACENT TO SAID APERTURE, SAID APERTURE AND SAID PERFORATIONS OPENING INTO SAID CAVITY; AND MEANS FOR ESTABLISHING A POTENTIAL DIFFERENCE BETWEEN SAID CATHODE AND SAID ANODE TO CAUSE EMISSION OF A NARROW BEAM OF NEGATIVELY CHARGED PARTICLES OUTWARDLY FROM SAID APERTURE.
Claim 2
Dependent Claim
94 words
A GAS DISCHARGE DEVICE COMPRISING A HOUSING; AN IONIZABLE GAS IN SAID HOUSING, SAID GAS BEING AT A SUBATMOSHPERIC PRESSURE; AN ANODE AND A CATHODE POSITIONED IN SPACED RELATIONSHIP IN SAID HOUSING, SAID CATHODE CONTAINING A CAVITY AND HAVING A PORTION PROVIDED WITH AT LEAST ONE APERTURE AND WITH A PLURALITY OF PERFORATIONS ADJACENT TO SAID APERTURE, SAID APERTURE AND SAID PERFORATIONS OPENING INTO SAID CAVITY; AND MEANS FOR ESTABLISHING A POTENTIAL DIFFERENCE BETWEEN SAID CATHODE AND SAID ANODE TO CAUSE EMISSION OF A NARROW BEAM OF NEGATIVELY CHARGED PARTICLES OUTWARDLY FROM SAID APERTURE.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |