Patent US2550301A successfully refreshed from Google Patents.
US2550301A
Expired / Lapsed
US
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Disk grinder and mixer
Assignee: Individual
•
Filing: 1948-07-06
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Granted: 1951-04-24
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Expires: 1968-07-06
Abstract
No abstract record available.
Inventors
- 👤 Elmer S Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:02
CPC Classifications
B; B02; B02C; B02C7/00; B02C7/02; B02C7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US186440A
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US450689A
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US563988A
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US650767A
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US1051338A
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US1392464A
Cited
US1570456A
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US2218876A
Cited
US2273868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |