Patent US2698625A successfully refreshed from Google Patents.
US2698625A
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US
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Cellulose products purification apparatus
Assignee: General Mills Inc
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Filing: 1949-11-14
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Granted: 1955-01-04
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Expires: 1969-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jack A Bitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:21
CPC Classifications
B; B29; B29C; B29C44/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640693A
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US1514774A
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US2191296A
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US2295823A
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US2408191A
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US2541901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |