US3443223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning arrester leakage current and duty monitoring system
Assignee: Westinghouse Electric Corp
•
Filing: 1965-09-07
•
Granted: 1969-05-06
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 Richard E Kennon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:26
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/04; H02H3/048
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1388348A
Cited
US2165964A
Cited
DE1064614B
Cited
US3037161A
Cited
US3111606A
Cited
US3320524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |