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Patent US3526978A successfully refreshed from Google Patents.
US3526978A
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US
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Elevator motor reversing valve control system
Assignee: Fiat Allis Europe SpA
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Filing: 1968-03-01
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Granted: 1970-09-08
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Expires: 1988-03-01
Abstract
No abstract record available.
Inventors
- 👤 David H Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:26
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/655; E02F3/651; F; F15; F15B; F15B21/00; F15B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3369464A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |