Patent US2082656A successfully refreshed from Google Patents.
US2082656A
Expired / Lapsed
US
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Process of purification of sugar solutions
Assignee: EIDP Inc
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Filing: 1935-07-11
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Granted: 1937-06-01
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Expires: 1955-07-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Reichert
- 👤 Ralph B Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:36
CPC Classifications
C; C13; C13B; C13B20/00; C13B20/12; C13B20/123; C13B20/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-05-31 | 1940-11-30 | 1941-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-05-31 | 1944-11-30 | 1945-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-05-31 | 1948-11-30 | 1949-06-01 | $7700.00 | Window Closed / Lapsed |