US3315330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tubes
Assignee: Hitachi Ltd
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Filing: 1963-02-19
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Granted: 1967-04-25
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Expires: 1983-02-19
Abstract
No abstract record available.
Inventors
- 👤 Hisada Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:37
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/42; H01J19/46; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; H01J2893/0006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
AN IMPROVED METHOD OF FABRICATING AN ELECTRODE TUBE ASSEMBLY BY THE STEPS OF ASSEMBLING AT LEAST TWO CYLINDRICAL METALLIC BLANKS IN PROPERLY SPACED COAXIAL NESTED NON-ABUTTING INSULATED RELATIONSHIP, HOLDING SAID CYLINDRICAL BLANKS PRECISELY FIXED IN SAID RELATIONSHIP WITH RESPECT TO ONE ANOTHER, SIMULTANEOUSLY FORMING RADIAL ALIGNED SLITS IN SAID CYLINDRICAL BLANKS TO FORM A COAXIAL ELECTRODE SUB-ASSEMBLY HAVING THE SAME NUMBER OF ELECTRODES AS CYLINDRICAL BLANKS, FIXEDLY MOUNTING SAID COAXIAL ELECTRODE SUB-ASSEMBLY, IN A TUBE STRUCTURE TO FORM ELECTRODE TUBE ASSEMBLY, THE IMPROVEMENT ESSENTIALLY CONSISTING OF HOLDING SAID CYLINDRICAL BLANKS PRECISELY IN SAID FIXED RELATIONSHIP WITH RESPECT TO ONE ANOTHER SOLELY BY INSERTING AND SELF-ADHERENTLY SECURING TO SAID CYLINDRICAL BLANKS SPACER BLOCKS OF REMOVABLE ADHESIVE MATERIAL AND REMOVING SAID ADHESIVE MATERIAL AFTER SAID COAXIAL ELECTRODE SUB-ASSEMBLY HAS BEEN FIXEDLY MOUNTED IN SAID TUBE STRUCTURE SUCH THAT THE INTERELECTRODE CAPACITANCE BETWEEN SAID ELECTRODES IS REDUCED AND THE INSULATED RELATION BETWEEN SAID CYLINDRICAL BLANKS IS MAINTAINED IN THE FINISHED TUBE.
Claim 2
Dependent Claim
158 words
AN IMPROVED METHOD OF FABRICATING AN ELECTRODE TUBE ASSEMBLY BY THE STEPS OF ASSEMBLING AT LEAST TWO CYLINDRICAL METALLIC BLANKS IN PROPERLY SPACED COAXIAL NESTED NON-ABUTTING INSULATED RELATIONSHIP, HOLDING SAID CYLINDRICAL BLANKS PRECISELY FIXED IN SAID RELATIONSHIP WITH RESPECT TO ONE ANOTHER, SIMULTANEOUSLY FORMING RADIAL ALIGNED SLITS IN SAID CYLINDRICAL BLANKS TO FORM A COAXIAL ELECTRODE SUB-ASSEMBLY HAVING THE SAME NUMBER OF ELECTRODES AS CYLINDRICAL BLANKS, FIXEDLY MOUNTING SAID COAXIAL ELECTRODE SUB-ASSEMBLY, IN A TUBE STRUCTURE TO FORM ELECTRODE TUBE ASSEMBLY, THE IMPROVEMENT ESSENTIALLY CONSISTING OF HOLDING SAID CYLINDRICAL BLANKS PRECISELY IN SAID FIXED RELATIONSHIP WITH RESPECT TO ONE ANOTHER SOLELY BY INSERTING AND SELF-ADHERENTLY SECURING TO SAID CYLINDRICAL BLANKS SPACER BLOCKS OF REMOVABLE ADHESIVE MATERIAL AND REMOVING SAID ADHESIVE MATERIAL AFTER SAID COAXIAL ELECTRODE SUB-ASSEMBLY HAS BEEN FIXEDLY MOUNTED IN SAID TUBE STRUCTURE SUCH THAT THE INTERELECTRODE CAPACITANCE BETWEEN SAID ELECTRODES IS REDUCED AND THE INSULATED RELATION BETWEEN SAID CYLINDRICAL BLANKS IS MAINTAINED IN THE FINISHED TUBE.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |