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US3537259A
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Electro-hydraulic actuating system of the remote control type
Assignee: Harnischfeger Corp
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Filing: 1968-11-29
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Granted: 1970-11-03
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Expires: 1988-11-29
Abstract
No abstract record available.
Inventors
- 👤 Richard O Gordon
- 👤 Leveret C Russler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:43
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/66; B60T13/68; B60T13/686; F; F15; F15B; F15B21/00; F15B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2330739A
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US2332593A
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US2677285A
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US2674854A
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US2830859A
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US3099136A
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US3046743A
Cited
US3424260A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |