US2426677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for converting cellulose into sugar
Assignee: Anderso Clayton & Co
•
Filing: 1941-12-15
•
Granted: 1947-09-02
•
Expires: 1961-12-15
Abstract
No abstract record available.
Inventors
- 👤 Ellis I Fulmer
- 👤 John W Dunning
- 👤 Ralph H Fash
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:14
CPC Classifications
C; C13; C13K; C13K1/00; C13K1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190000259A
Cited
US1220778A
Cited
GB146860A
Cited
GB147415A
Cited
US1670727A
Cited
US1511786A
Cited
US1677406A
Cited
US2086701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-01 | 1951-03-03 | 1951-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-01 | 1955-03-03 | 1955-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-01 | 1959-03-03 | 1959-09-02 | $7700.00 | Window Closed / Lapsed |