Patent US2440925A successfully refreshed from Google Patents.
US2440925A
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Fermenting method
Assignee: CHEMPROTIN PRODUCS
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Filing: 1944-04-27
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Granted: 1948-05-04
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Expires: 1964-04-27
Abstract
No abstract record available.
Inventors
- 👤 Boeckeler Benjamin Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:03
CPC Classifications
C; C12; C12P; C12P7/00; C12P7/02; C12P7/04; C12P7/06; B; B01; B01D; B01D3/00; B01D3/001; Y; Y02; Y02E; Y02E50/00; Y02E50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US419332A
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US1261328A
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US1884272A
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US2053770A
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US2155134A
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US2338228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |