Patent US3137244A successfully refreshed from Google Patents.
US3137244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lining a railroad track
Assignee: Kershaw Manufacturing Co Inc
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Filing: 1961-07-12
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Granted: 1964-06-16
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 John D Holley
- 👤 Jr John F Bryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:26
CPC Classifications
E; E01; E01B; E01B33/00; E01B33/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
APPARATUS TO SHIFT A RAILWAY TRACK LATERALLY OF THE ROADBED COMPRISING A WEIGHT CARRYING FRAME HAVING WHEELS ADAPTED TO RUN ALONG THE RAILS OF A TRACK IN NONWORKING POSITION, MEANS TO LOWER THE WEIGHT CARRYING FRAME ONTO THE CROSSTIES AND TO RAISE THE WHEELS FROM THE TRACK IN THE WORKING POSITION, A WEIGHT IN SAID WEIGHT CARRYING FRAME, MEANS TO MOVE THE WEIGHT TRANSVERSELY OF THE RAILS, AND MEANS TO TRANSMIT THE INERTIA OF THE WEIGHT TO THE TRACK WHEREBY THE TRACK IS SHIFTED LATERALLY OF THE ROADBED.
Claim 2
Dependent Claim
88 words
APPARATUS TO SHIFT A RAILWAY TRACK LATERALLY OF THE ROADBED COMPRISING A WEIGHT CARRYING FRAME HAVING WHEELS ADAPTED TO RUN ALONG THE RAILS OF A TRACK IN NONWORKING POSITION, MEANS TO LOWER THE WEIGHT CARRYING FRAME ONTO THE CROSSTIES AND TO RAISE THE WHEELS FROM THE TRACK IN THE WORKING POSITION, A WEIGHT IN SAID WEIGHT CARRYING FRAME, MEANS TO MOVE THE WEIGHT TRANSVERSELY OF THE RAILS, AND MEANS TO TRANSMIT THE INERTIA OF THE WEIGHT TO THE TRACK WHEREBY THE TRACK IS SHIFTED LATERALLY OF THE ROADBED.
References Cited (Backward Citations)
US1843066A
Cited
US1842670A
Cited
US2854930A
Cited
US2760440A
Cited
US2926616A
Cited
US2928355A
Cited
US3020858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |