Patent US2677307A successfully refreshed from Google Patents.
US2677307A
Expired / Lapsed
US
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Apparatus and method for truing wheel treads of railroad vehicles
Assignee: Individual
•
Filing: 1951-09-06
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Granted: 1954-05-04
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Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 Albert G Bloss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:33
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/02; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/30672; Y10T409/30784; Y10T409/307952; Y10T409/308344
Claims Analysis
Total Claims: 0
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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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |