Patent US2595559A successfully refreshed from Google Patents.
US2595559A
Expired / Lapsed
US
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Plural liquid unit for grinding machines
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1949-04-28
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Granted: 1952-05-06
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Expires: 1969-04-28
Abstract
No abstract record available.
Inventors
- 👤 Charles C Alvord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:11
CPC Classifications
B; B24; B24B; B24B55/00; B24B55/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1938875A
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US2140289A
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US2304248A
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US2375428A
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US2434679A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |