US2883005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tread brake arrangement
Assignee: American Steel Foundries
•
Filing: 1955-12-02
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Granted: 1959-04-21
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Expires: 1975-12-02
Abstract
No abstract record available.
Inventors
- 👤 Walter R Polanin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:24
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/20; B61H13/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US878181A
Cited
US1145416A
Cited
US2112530A
Cited
US2169960A
Cited
US2131703A
Cited
US2215064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |