US3506906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground fault circuit interrupter with inadvertent ground sensor
Assignee: Rucker Co
•
Filing: 1967-12-18
•
Granted: 1970-04-14
•
Expires: 1987-12-18
Abstract
No abstract record available.
Inventors
- 👤 David William Nestor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:54
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/26; H02H3/32; H02H3/33; H02H3/331; H02H3/16; H02H3/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3019373A
Cited
US3214638A
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US3252052A
Cited
US3356939A
Cited
US3296493A
Cited
US3376477A
Cited
US3407337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |