US3085175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode assembly for electron tube
Assignee: RCA Corp
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Filing: 1960-03-14
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Granted: 1963-04-09
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Expires: 1980-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry V Knauf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:03
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J19/00; H01J19/42; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A CATHODE ASSEMBLY COMPRISING AN OUTER CYLINDRICALLY TUBULAR CATHODE MEMBER AND AN INNER TUBULAR SUPPORT MEMBER MOUNTED WITHIN SAID OUTER TUBULAR MEMBER IN CONTACTING TELESCOPED RELATIONSHIP THEREWITH, SAID INNER TUBULAR MEMBER BEING DISTORTED FROM AN UNTELESCOPED GENERALLY POLYGONAL CROSS-SECTION TOWARD A CYLINDRICAL CROSSSECTION.
Claim 2
Dependent Claim
43 words
A CATHODE ASSEMBLY COMPRISING AN OUTER CYLINDRICALLY TUBULAR CATHODE MEMBER AND AN INNER TUBULAR SUPPORT MEMBER MOUNTED WITHIN SAID OUTER TUBULAR MEMBER IN CONTACTING TELESCOPED RELATIONSHIP THEREWITH, SAID INNER TUBULAR MEMBER BEING DISTORTED FROM AN UNTELESCOPED GENERALLY POLYGONAL CROSS-SECTION TOWARD A CYLINDRICAL CROSSSECTION.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |