US3258139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating platform
Assignee: Perfection Steel Body Co
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Filing: 1964-06-19
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Granted: 1966-06-28
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Expires: 1984-06-19
Abstract
No abstract record available.
Inventors
- 👤 Edward L Ridgeway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:29
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/4442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A POWERED LIFT PLATFORM TO BE ATTACHED TO A PUBLIC CONVEYANCE OR OTHER VEHICLE OF THE TYPE THAT INCLUDES A PASSENGER SUPPORTING FLOOR AND A LONGITUDINALLY EXTENDING FRAME MEMBER, SAID LIFT PLATFORM COMPRISING, IN COMBINATION, PLATFORM FRAME MEANS MOUNTED INWARDLY OF SAID FRAME MEMBER; A LIFT PLATFORM INCLUDING AN INNER EDGE AND AN UPPER SURFACE FORMING A PORTION OF SAID PASSENGER SUPPORTING FLOOR; A TRANSVERSELY EXTENDING SHAFT MEANS ROTATABLY MOUNTED TO SAID PLATFORM FRAME MEANS; RIGHT AND LEFT ARMS HAVING OUTER ENDS PIVOTED TO SAID LIFT PLATFORM AT A PIVOTAL LOCATION SPACED OUTWARDLY FROM SAID INNER EDGE AND INNER ENDS RIGIDLY ATTACHED TO SAID SHAFT MEANS; A CONNECTING MEMBER EXTENDING SUBSTANTIALLY PARALLEL TO SAID LIFT ARMS AND PIVOTED AT ONE END TO SAID LIFT PLATFORM AND AT THE OTHER END TO SAID PLATFORM FRAME MEANS; POWER MEANS ATTACHED TO SAID PLATFORM FRAME MEANS FOR ROTATING SAID SHAFT MEANS; LINKAGE MEANS OPERATIVELY CONNECTED TO SAID POWER MEANS AND SAID SHAFT MEANS; AND MOUNTING PLATE MEANS ON THE TOP OF SAID PLATFORM FRAME MEANS FOR ATTACHMENT TO SAID VEHICLE.
Claim 2
Dependent Claim
177 words
A POWERED LIFT PLATFORM TO BE ATTACHED TO A PUBLIC CONVEYANCE OR OTHER VEHICLE OF THE TYPE THAT INCLUDES A PASSENGER SUPPORTING FLOOR AND A LONGITUDINALLY EXTENDING FRAME MEMBER, SAID LIFT PLATFORM COMPRISING, IN COMBINATION, PLATFORM FRAME MEANS MOUNTED INWARDLY OF SAID FRAME MEMBER; A LIFT PLATFORM INCLUDING AN INNER EDGE AND AN UPPER SURFACE FORMING A PORTION OF SAID PASSENGER SUPPORTING FLOOR; A TRANSVERSELY EXTENDING SHAFT MEANS ROTATABLY MOUNTED TO SAID PLATFORM FRAME MEANS; RIGHT AND LEFT ARMS HAVING OUTER ENDS PIVOTED TO SAID LIFT PLATFORM AT A PIVOTAL LOCATION SPACED OUTWARDLY FROM SAID INNER EDGE AND INNER ENDS RIGIDLY ATTACHED TO SAID SHAFT MEANS; A CONNECTING MEMBER EXTENDING SUBSTANTIALLY PARALLEL TO SAID LIFT ARMS AND PIVOTED AT ONE END TO SAID LIFT PLATFORM AND AT THE OTHER END TO SAID PLATFORM FRAME MEANS; POWER MEANS ATTACHED TO SAID PLATFORM FRAME MEANS FOR ROTATING SAID SHAFT MEANS; LINKAGE MEANS OPERATIVELY CONNECTED TO SAID POWER MEANS AND SAID SHAFT MEANS; AND MOUNTING PLATE MEANS ON THE TOP OF SAID PLATFORM FRAME MEANS FOR ATTACHMENT TO SAID VEHICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |