US3328631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning arrester with semiconductor electrodes
Assignee: Individual
•
Filing: 1965-06-08
•
Granted: 1967-06-27
•
Expires: 1985-06-08
Abstract
No abstract record available.
Inventors
- 👤 Greber Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:43
CPC Classifications
H; H01; H01C; H01C8/00; H01C8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A LIGHTING ARRESTER WITH SEMICONDUCTOR ELECTRODES CONSISTING OF A SERIES OF SEMICONDUCTOR DISCS WITH HIGH RESISTIVITY SPACERS BETWEEN THEM ARRANGED SO THAT DISCHARGE GAPS ARE MAINTAINED BETWEEN SAID DISCS, WITH EACH DISC HAVING AT LEAST ONE GROOVE CUT ALONG THE CIRCUMFERENCE OF ITS VERTICAL WALL, SAID DISCS BEING ARRANGED SO THAT THE TOP DISC IS CONNECTED TO THE PROTECTED PHASE CONDUCTOR AND THE BOTTOM DISC IS CONNECTED TO GROUND.
Claim 2
Dependent Claim
69 words
A LIGHTING ARRESTER WITH SEMICONDUCTOR ELECTRODES CONSISTING OF A SERIES OF SEMICONDUCTOR DISCS WITH HIGH RESISTIVITY SPACERS BETWEEN THEM ARRANGED SO THAT DISCHARGE GAPS ARE MAINTAINED BETWEEN SAID DISCS, WITH EACH DISC HAVING AT LEAST ONE GROOVE CUT ALONG THE CIRCUMFERENCE OF ITS VERTICAL WALL, SAID DISCS BEING ARRANGED SO THAT THE TOP DISC IS CONNECTED TO THE PROTECTED PHASE CONDUCTOR AND THE BOTTOM DISC IS CONNECTED TO GROUND.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |