Patent US2555064A successfully refreshed from Google Patents.
US2555064A
Expired / Lapsed
US
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Gyratory crusher
Assignee: Library and Archives Canada
•
Filing: 1947-06-07
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Granted: 1951-05-29
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Expires: 1967-06-07
Abstract
No abstract record available.
Inventors
- 👤 Robert W Stevens
- 👤 Douglas J Mackey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:44
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1592314A
Cited
US2017108A
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US1993900A
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US2135324A
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GB471842A
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US2110276A
Cited
US2158778A
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GB527606A
Cited
US2409391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |