Patent US3126839A successfully refreshed from Google Patents.
US3126839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railed transport means or systems
Assignee: —
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Filing: —
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Granted: 1964-03-31
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Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:32
CPC Classifications
B; B61; B61L; B61L23/00; B61L23/002; B61L23/005; B61F; B61F9/00; B61B; B61B12/00; B61B12/12; B61B12/125; E; E01; E01B; E01B25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A TRANSPORT SYSTEM A RUNNING TRACK PRESENTED BY UPPER SURFACES OF TWIN PARALLEL TRACK-FORMING BEAMS IN A MUTUALLY SPACED RELATION ON SUPPORT MEANS, SAID TRACK BEING SUITABLE FOR FLANGELESS WHEELS AND SAID BEAMS HAVING A CROSS-SECTION PRESENTING SIDE SURFACES INCLINED TO THE TRACK-PRESENTING UPPER SURFACES AND UPWARDLY CONVERGENT THEREBETWEEN; AND A VEHICLE HAVING LOAD-CARRYING WHEELS TO RUN ON SAID TRACK, A BODY SUPPORTED BY SAID WHEELS ABOVE SAID TRACK AND GUIDE WHEELS OPPOSITELY MOUNTED UNDER SAID BODY FOR GUIDING AND STABILIZING THE VEHICLE ON THE TRACK BY EXERTING OUTWARD RESILIENT GRIP ON SAID UPWARDLY CONVERGENT SIDE SURFACES OF THE BEAMS.
Claim 2
Dependent Claim
101 words
IN A TRANSPORT SYSTEM A RUNNING TRACK PRESENTED BY UPPER SURFACES OF TWIN PARALLEL TRACK-FORMING BEAMS IN A MUTUALLY SPACED RELATION ON SUPPORT MEANS, SAID TRACK BEING SUITABLE FOR FLANGELESS WHEELS AND SAID BEAMS HAVING A CROSS-SECTION PRESENTING SIDE SURFACES INCLINED TO THE TRACK-PRESENTING UPPER SURFACES AND UPWARDLY CONVERGENT THEREBETWEEN; AND A VEHICLE HAVING LOAD-CARRYING WHEELS TO RUN ON SAID TRACK, A BODY SUPPORTED BY SAID WHEELS ABOVE SAID TRACK AND GUIDE WHEELS OPPOSITELY MOUNTED UNDER SAID BODY FOR GUIDING AND STABILIZING THE VEHICLE ON THE TRACK BY EXERTING OUTWARD RESILIENT GRIP ON SAID UPWARDLY CONVERGENT SIDE SURFACES OF THE BEAMS.
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) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |