Patent US2543164A successfully refreshed from Google Patents.
US2543164A
Expired / Lapsed
US
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Bumper and screen plate combination for rotary hammer mills
Assignee: Individual
•
Filing: 1948-06-08
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Granted: 1951-02-27
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Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Harrenstein Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:39
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/26; B02C13/282; B02C13/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US991477A
Cited
US978034A
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US1354855A
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US1420354A
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US1606692A
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US2066621A
Cited
US2215226A
Cited
US2385767A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-26 | 1954-08-28 | 1955-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-26 | 1958-08-28 | 1959-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-26 | 1962-08-28 | 1963-02-27 | $7700.00 | Window Closed / Lapsed |