Patent US2727263A successfully refreshed from Google Patents.
US2727263A
Expired / Lapsed
US
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Railway track cleaning machine
Assignee: Individual
•
Filing: 1949-11-23
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Granted: 1955-12-20
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Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Robert V Dangremond
- 👤 George P Lokotzke
- 👤 Stuart H Shepley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:34
CPC Classifications
E; E01; E01H; E01H8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US222447A
Cited
US1238855A
Cited
US1615928A
Cited
US1906766A
Cited
US2281496A
Cited
US2505501A
Cited
US2491797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |