Patent US2618915A successfully refreshed from Google Patents.
US2618915A
Expired / Lapsed
US
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Machine parts polishing tool
Assignee: Individual
•
Filing: 1949-11-17
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Granted: 1952-11-25
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Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 William E Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:36
CPC Classifications
B; B24; B24D; B24D15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE169975C
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DE158777C
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GB190224277A
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FR389638A
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US1025859A
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US1565958A
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US1622292A
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US1748313A
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US1905821A
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US1908048A
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US2376531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |