US3517356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupter
Assignee: Terasaki Electric Co Ltd
•
Filing: 1968-07-24
•
Granted: 1970-06-23
•
Expires: 1988-07-24
Abstract
No abstract record available.
Inventors
- 👤 Tutomu Hanafusa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:03
CPC Classifications
H; H01; H01H; H01H77/00; H01H77/02; H01H77/10; H01H77/107; H01H73/00; H01H73/02; H01H73/04; H01H73/045; H01H1/00; H01H1/12; H01H1/14; H01H1/20; H01H2001/2091
Claims Analysis
Total Claims: 0
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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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |