US3125964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
silverman
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:47
CPC Classifications
B; B60; B60V; B60V3/00; B60V3/02; B60V3/04; B61; B61B; B61B13/00; B61B13/04; B61B13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A TRANSPORTATION APPARATUS COMPRISING AN OVERHEAD RAIL MEANS, A VEHICLE BELOW AND EXTENDING ALONG SAID RAIL MEANS, MAGNETIC MEANS ON TOP OF SAID VEHICLE COOPERATING WITH SAID RAIL MEANS TO BIAS SAID VEHICLE AWAY FROM GROUND LEVEL, THE MAGNETIC FORCE OF SAID MAGNETIC MEANS BEING SUFFICIENT TO OFFSET THE EFFECT OF GRAVITY ON SAID VEHICLE, CONTROL MEANS, SAID CONTROL MEANS INCLUDING GAP SENSING MEANS SENSITIVE TO THE GAP BETWEEN SAID MAGNETIC MEANS AND SAID RAIL MEANS, SAID CONTROL MEANS MAINTAINING THE GAP BETWEEN SAID MAGNETIC MEANS AND SAID RAIL MEANS CONSTANT BY CONTROL OF SAID MAGNETIC MEANS IN ACCORDANCE WITH SIGNALS RECEIVED FROM SAID GAP SENSING MEANS, AND MEANS FOR PROPELLING SAID VEHICLE WITH SAID VEHICLE BEING GUIDED BY SAID RAIL MEANS.
Claim 2
Dependent Claim
122 words
A TRANSPORTATION APPARATUS COMPRISING AN OVERHEAD RAIL MEANS, A VEHICLE BELOW AND EXTENDING ALONG SAID RAIL MEANS, MAGNETIC MEANS ON TOP OF SAID VEHICLE COOPERATING WITH SAID RAIL MEANS TO BIAS SAID VEHICLE AWAY FROM GROUND LEVEL, THE MAGNETIC FORCE OF SAID MAGNETIC MEANS BEING SUFFICIENT TO OFFSET THE EFFECT OF GRAVITY ON SAID VEHICLE, CONTROL MEANS, SAID CONTROL MEANS INCLUDING GAP SENSING MEANS SENSITIVE TO THE GAP BETWEEN SAID MAGNETIC MEANS AND SAID RAIL MEANS, SAID CONTROL MEANS MAINTAINING THE GAP BETWEEN SAID MAGNETIC MEANS AND SAID RAIL MEANS CONSTANT BY CONTROL OF SAID MAGNETIC MEANS IN ACCORDANCE WITH SIGNALS RECEIVED FROM SAID GAP SENSING MEANS, AND MEANS FOR PROPELLING SAID VEHICLE WITH SAID VEHICLE BEING GUIDED BY SAID RAIL MEANS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US1727720A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |