Patent US4990158A successfully refreshed from Google Patents.
US3573170A
Expired / Lapsed
US
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Enzyme products
Assignee: Monsanto Co
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Filing: 1968-09-19
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Granted: 1971-03-30
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Expires: 1988-09-19
Abstract
Abstract THIS INVENTION RELATES TO PARTICULATE ENZYME PRODUCTS AND TO PROCESSES FOR PREPARING THE SAME; THESE PRODUCTS CONTAIN ENZYMES PRODUCED BY BACILLUS SUBTILLIS, HAVE A BULK DENSITY OF FROM ABOUT 0.25 GRAM/CC. TO ABOUT 2.0 GRAMS/CC. AND HAVE A CRITICAL PARTICLE SIZE.
Inventors
- 👤 Sidney G Clark
- 👤 Harold E Feierstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:05
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38609; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/832; Y10S435/839
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |