Patent US3366831A successfully refreshed from Google Patents.
US3366831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overvoltage arrester having stacked arrays of arc gap and grading resistor units
Assignee: Siemens Schuckertwerke AG
•
Filing: 1965-04-14
•
Granted: 1968-01-30
•
Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Lapple Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:44
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/16; H01T4/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |