Patent US3034236A successfully refreshed from Google Patents.
US3034236A
Expired / Lapsed
US
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Snow clearing apparatus for railroad switchyards
Assignee: Individual
•
Filing: 1960-04-01
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Granted: 1962-05-15
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Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 Pyke Albert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:42
CPC Classifications
E; E01; E01H; E01H8/00; E01H8/02; E01H8/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT2732B
Cited
US739387A
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US1266930A
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US1200234A
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US1255275A
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US1638708A
Cited
US2727263A
Cited
US2777220A
Cited
US2869159A
Cited
US2929084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-14 | 1965-11-13 | 1966-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-14 | 1969-11-13 | 1970-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-14 | 1973-11-13 | 1974-05-15 | $7700.00 | Window Closed / Lapsed |