US3150608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface smoothing machine
Assignee: RAILWAY MAINTENANCE CORP
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Filing: 1960-05-31
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Granted: 1964-09-29
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert S Brown
- 👤 Donald F Turner
- 👤 Welter Neil Evan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:38
CPC Classifications
E; E01; E01B; E01B35/00; E01B27/00; E01B27/12; E01B27/13; E01B27/16; E01B27/17; E01B2203/00; E01B2203/10; E01B2203/14; E01B2203/145; E01B2203/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A RAILWAY TRACK SMOOTHING MACHINE INCLUDING A VEHICLE HAVING MEANS TO CLAMP THE VEHICLE TO THE TRACK AND MEANS TO SWINGINGLY ELEVATE ONE END OF THE VEHICLE AND THE UNDERLYING TRACK SIMULTANEOUSLY AT THE LOCATION OF THE END OF THE VEHICLE ON THE TRACK; SAID VEHICLE BEING MOUNTED ON WHEELS FOR MOVEMENT ALONG THE RAILS OF THE TRACKS; A FIRST BEAM AFFIXED TO ONE END OF THE VEHICLE AND NORMALLY EXTENDING SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF THE TRACK, THE OUTER END OF THE BEAM BEING SWINGABLE VERTICALLY RELATIVE TO THE VEHICLE ABOUT ITS POINT OF AFFIXATION TO THE VEHICLE; A WHEEL-MOUNTED CART MOVABLE ALONG THE RAILS OF THE TRACK; THE OUTER END OF SAID BEAM BEING PIVOTALLY MOUNTED ON SAID CART; AND A FIRST SENSING MEANS OPERATIVELY AFFIXED TO THE VEHICLE AND BEAM TO INDICATE RELATIVE VERTICAL ANGULARITY BETWEEN THE VEHICLE AND BEAM.
Claim 2
Dependent Claim
145 words
A RAILWAY TRACK SMOOTHING MACHINE INCLUDING A VEHICLE HAVING MEANS TO CLAMP THE VEHICLE TO THE TRACK AND MEANS TO SWINGINGLY ELEVATE ONE END OF THE VEHICLE AND THE UNDERLYING TRACK SIMULTANEOUSLY AT THE LOCATION OF THE END OF THE VEHICLE ON THE TRACK; SAID VEHICLE BEING MOUNTED ON WHEELS FOR MOVEMENT ALONG THE RAILS OF THE TRACKS; A FIRST BEAM AFFIXED TO ONE END OF THE VEHICLE AND NORMALLY EXTENDING SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF THE TRACK, THE OUTER END OF THE BEAM BEING SWINGABLE VERTICALLY RELATIVE TO THE VEHICLE ABOUT ITS POINT OF AFFIXATION TO THE VEHICLE; A WHEEL-MOUNTED CART MOVABLE ALONG THE RAILS OF THE TRACK; THE OUTER END OF SAID BEAM BEING PIVOTALLY MOUNTED ON SAID CART; AND A FIRST SENSING MEANS OPERATIVELY AFFIXED TO THE VEHICLE AND BEAM TO INDICATE RELATIVE VERTICAL ANGULARITY BETWEEN THE VEHICLE AND BEAM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |