Patent US3294033A successfully refreshed from Google Patents.
US3294033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tie bed scarifier
Assignee: —
•
Filing: —
•
Granted: 1966-12-27
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Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:08
CPC Classifications
E; E01; E01B; E01B29/00; E01B29/06; E01B29/09; E01B29/10; E01B29/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A RAILROAD TIE BED SCARIFIER, FRAME, MEANS FOR MOVING IT ALONG A RAILROAD TRACK, A PAIR OF GENERALLY PARALLEL BLADELIKE DIGGER MEANS EXTENDING TRANSVERSELY OF THE FRAME AND MOUNTED THEREON, OF A LENGTH GREATER THAN THE RAIL GUAGE, SAID DIGGER MEANS BEING MOVABLE UP AND DOWN ON SAID FRAME, MEANS FOR CAUSING SAID DIGGER MEANS TO MOVE DOWNWARDLY INTO THE BALLAST BENEATH THE RAILS, AND MEANS FOR MOVING SAID DIGGER MEANS APART TO FORM A TRENCH IN THE BALLAST BENEATH THE RAILS TO PROVIDE FOR SUBSEQUENT INSERTION OF A RAILROAD TIE.
Claim 2
Dependent Claim
92 words
IN A RAILROAD TIE BED SCARIFIER, FRAME, MEANS FOR MOVING IT ALONG A RAILROAD TRACK, A PAIR OF GENERALLY PARALLEL BLADELIKE DIGGER MEANS EXTENDING TRANSVERSELY OF THE FRAME AND MOUNTED THEREON, OF A LENGTH GREATER THAN THE RAIL GUAGE, SAID DIGGER MEANS BEING MOVABLE UP AND DOWN ON SAID FRAME, MEANS FOR CAUSING SAID DIGGER MEANS TO MOVE DOWNWARDLY INTO THE BALLAST BENEATH THE RAILS, AND MEANS FOR MOVING SAID DIGGER MEANS APART TO FORM A TRENCH IN THE BALLAST BENEATH THE RAILS TO PROVIDE FOR SUBSEQUENT INSERTION OF A RAILROAD TIE.
References Cited (Backward Citations)
US2603255A
Cited
US2975725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |