Patent US2918358A successfully refreshed from Google Patents.
US2918358A
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Method of manufacture of slow-wave structures
Assignee: Raytheon Co
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Filing: 1956-12-31
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Granted: 1959-12-22
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Iversen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:41
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD OF MANUFACTURING A SLOW-WAVE STRUCTURE ADAPTED FOR USE IN A TRAVELING-WAVE TUBE COMPRISING THE STEP OF: APPLYING A METALLIC POWDER TO A LIMITED PREDETERMINED AREA OF THE INNER SURFACE OF A TUBE IN THE CONFIGURATION OF A PREDETERMINED SLOW-WAVE STRUCTURE FUSING THE APPLIED METALLIC POWDER TO SAID INNER SURFACE OF SAID TUBE; AND REMOVING A PORTION OF SAID INNER SURFACE TACE OF SAID TUBE ADJACENT SAID FUSED METALLIC POWDER, SLOW-WAVE STRUCTURE AND TUBE.
Claim 2
Independent Claim
75 words
A METHOD OF MANUFACTURING A SLOW-WAVE STRUCTURE ADAPTED FOR USE IN A TRAVELING-WAVE TUBE COMPRISING THE STEP OF: APPLYING A METALLIC POWDER TO A LIMITED PREDETERMINED AREA OF THE INNER SURFACE OF A TUBE IN THE CONFIGURATION OF A PREDETERMINED SLOW-WAVE STRUCTURE FUSING THE APPLIED METALLIC POWDER TO SAID INNER SURFACE OF SAID TUBE; AND REMOVING A PORTION OF SAID INNER SURFACE TACE OF SAID TUBE ADJACENT SAID FUSED METALLIC POWDER, SLOW-WAVE STRUCTURE AND TUBE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |