Patent US2650032A successfully refreshed from Google Patents.
US2650032A
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Track spike with circumferentially extending deformable projection
Assignee: American Brake Shoe Co
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Filing: 1949-12-08
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Granted: 1953-08-25
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Expires: 1969-12-08
Abstract
No abstract record available.
Inventors
- 👤 Charles E Godfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:39
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/04; E01B9/06; Y; Y10; Y10S; Y10S411/00; Y10S411/922
Claims Analysis
Total Claims: 0
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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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |