Patent US3300176A successfully refreshed from Google Patents.
US3300176A
Expired / Lapsed
US
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Digital operator
Assignee: Schneider Electric Systems USA Inc
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Filing: 1964-06-24
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Granted: 1967-01-24
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Expires: 1984-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard W Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:33
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US587786A
Cited
US1302538A
Cited
US1856408A
Cited
US2070421A
Cited
US2614583A
Cited
US2836153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |