US3183394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode sleeve with flanges crimped against ceramic disc
Assignee: Superior Tube Co
•
Filing: 1961-07-31
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Granted: 1965-05-11
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Expires: 1981-07-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Hipszer
- 👤 Royle Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:54
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J1/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
A CATHODE ASSEMBLY COMPRISING A CERAMIC SPACER DISC HAVING AN OPENING EXTENDING THERETHROUGH BETWEEN ITS OPPOSITE FACES, AT LEAST ONE OF SAID FACES HAVING SYMMETRICALLY ANGULARLY SPACED GROOVES OF PROGRESSIVELY DECREASING DEPTH AND EACH EXTENDING OUTWARDLY FROM SAID OPENING, AND A CATHODE SLEEVE EXTENDING THROUGH SAID OPENING AND HAVING A PAIR OF EMBOSSED FLANGES CRIMPED AGAINST SAID OPPOSITE FACES OF THE DISC AND INTO INTERLOCKING ENGAGEMENT WITH SAID GROOVES.
References Cited (Backward Citations)
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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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |