US3766434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety power distribution system
Assignee: Individual
•
Filing: 1971-08-09
•
Granted: 1973-10-16
•
Expires: 1991-08-09
Abstract
Abstract A SAFETY POWER DISTRIBUTION SYSTEM FOR ENSURING THAT THE CHASSIS OF AN ELECTRICAL APPARATUS IS MAINTAINED AT SAFETY EARTH GROUND. IF ANY CONDITION DEVELOPS WHICH DEROGATES FROM SUCH A GUARANTEE, THE SAFETY POWER DISTRIBUTION SYSTEM WILL BLOCK POWER FROM BEING SUPPLIED TO THE ELECTRICAL APPARATUS.
Inventors
- 👤 S Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:01
CPC Classifications
H; H02; H02H; H02H11/00; H02H11/001; H02H11/002; H02H3/00; H02H3/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |