Patent US3278886A successfully refreshed from Google Patents.
US3278886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device
Assignee: National Video Corp
•
Filing: 1964-09-25
•
Granted: 1966-10-11
•
Expires: 1984-09-25
Abstract
No abstract record available.
Inventors
- 👤 Horst H Blumenberg
- 👤 James W Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:59
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/74; H01R33/76; H01R33/7607; H01R33/7614; H01R33/7621; H01J; H01J5/00; H01J5/50; H01J5/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
A VACUUM TUBE BASE AND SOCKET STRUCTURE FOR PREVENTING ARCING BETWEEN A HIGH VOLTAGE PIN AND ADJACENT PINS, SAID BASE STRUCTURE HAVING A PLURALITY OF OPENINGS THEREIN FOR RECEIVING THE VACUUM TUBE PINS INCLUDING THE HIGH VOLTAGE PIN, A FIRST NON-CONDUCTIVE SHIELDING WALL EXTENDING REARWARDLY FROM THE REAR FACE OF THE TUBE BASE AND SURRONDING THE HIGH VOLTAGE PIN, SAID TUBE SOCKET HAVING A PLRUALITY OF OPENINGS FOR RECEIVING THE TUBE PINS INCLUDING THE HIGH VOLTAGE PIN, SAID TUBE SOCKET FURTHER INCLUDING SLOTS ON THE FORWARD FACE THEREOF ON OPPOSITE SIDES OF THE HIGH VOLTAGE PIN FOR RECEIVING SAID FIRST SHIELDING WALL AND A V SHAPED SECOND NON-CONDUCTIVE SHIELDING WALL POSITIONED ON THE REAR FACE OF THE TUBE SOCKET BETWEEN THE HIGHT VOLTAGE PIN AND ADJACENT PINS, SAID FIRST AND SECOND SHIELDING WALLS ACTING TO PREVENT ARCING FROM THE HIGH VOLTAGE PIN TO ADJACENT PINS.
References Cited (Backward Citations)
US1536855A
Cited
US2205502A
Cited
US2263396A
Cited
US2291660A
Cited
US2277121A
Cited
US2314060A
Cited
US2348216A
Cited
US2563775A
Cited
US2470518A
Cited
US2458652A
Cited
US2556956A
Cited
US2677116A
Cited
US2667528A
Cited
US2915734A
Cited
US2831279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |