Patent US3523614A successfully refreshed from Google Patents.
US3523614A
Expired / Lapsed
US
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Hydraulic crane and bucket control
Assignee: Individual
•
Filing: 1967-09-25
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Granted: 1970-08-11
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Expires: 1987-09-25
Abstract
No abstract record available.
Inventors
- 👤 Luther Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:31
CPC Classifications
B; B66; B66C; B66C3/00; B66C3/12; B66C3/125; E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/47
Claims Analysis
Total Claims: 0
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US3286852A
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US3043445A
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US3291450A
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US3291451A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |