Patent US3562829A successfully refreshed from Google Patents.
US3562829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive vehicle adapted for transporting and installing a folding bridge
Assignee: Dr Ing HCF Porsche AG
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Filing: 1969-02-25
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Granted: 1971-02-16
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Expires: 1989-02-25
Abstract
Abstract A POWERED VEHICLE INCLUDING APPARATUS FOR TRANSPORTING AND INSTALLING A PREFABRICATED FOLDING BRIDGE STRUCTURE HAVING A CENTRAL BRIDGE PORTION AND FOLDING ACCESS RAMPS, THEREIN THE BRIDGE IS SUPPORTED ON THE VEHICLE UPON A CANTILEVER SUPPORT PIVOTALLY MOUNTED THEREON. THE CONTROL SYSTEM FOR EFFECTING PIVOTING OF THE ACCESS RAMPS FROM THE FOLDED POSITION INTO THE EXTENDED POSITION INCLUDES A SERVO-MECHANISM OF VARIABLE LENGTH PIVOTALLY CONNECTED TO THE CENTRAL BRIDGE PORTION AND OPERATIVELY CONNECTED WITH AN ACCESS RAMP THROUGH A LINKAGE INCLUDING AT LEAST ONE ROTATABLE INTERMEDIATE GUIDE MEMBER.
Inventors
- 👤 Friedhelm Soffge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:43
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12; E01D15/127
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |