Patent US3605358A successfully refreshed from Google Patents.
US3605358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic crane boom
Assignee: Individual
•
Filing: 1969-03-28
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Granted: 1971-09-20
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Expires: 1989-03-28
Abstract
Abstract OUTER TUBE HAVING A CYLINDER THEREON MOVING A CARRIAGE THEREALONG, A MULTIPLE PULLEY SYSTEM ACTUATED BY THE CARRIAGE FOR PROPELLING A MIDDLE TUBE OUT OF THE OUTER TUBE, AND A PULLEY SYSTEM ON THE MIDDLE TUBE ACTUATED BY PROPULSION THEREOF FOR PROPELLING AN INNER TUBE OUT OF THE MIDDLE TUBE.
Inventors
- 👤 Joseph T Bentey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:36
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044; B66F11/046; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/18848
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |