Patent US3746649A successfully refreshed from Google Patents.
US3746649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable liquid enzyme product
Assignee: PII ACQUISITIONS Inc A CORP OF
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Filing: 1971-10-01
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Granted: 1973-07-17
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Expires: 1991-10-01
Abstract
Abstract LIQUID ENZYME PRODUCT STABLE AGAINST PROTEOLYTIC DEGRADATION AND CONSISTING ESSENTIALLY OF AN ENZYME OF THE AMYLOSE OR PROTEASE TYPE AND 100 TO 500 PARTS, PER PART OF THE ENZYME, OF AN ORGANIC LIQUID MEDIUM FREE OF GLYCERINE AND NOT A SOLVENT FOR THE ENZYME AND SELECTED FROM CERTAIN ALCOHOLS, ALKYLENE GLYCOLS, ALKYLENE GLYCOL ALKYL OR PHENYL ETHERS, ALKYLENE GLYCOL ESTERS, ALKOXY ETHANOLS AND PROPANOLS AND ALKOXY TRIGLYCOLS, AND AN ENZYME INGREDIENT COMPRISING ALKALINE OR NEUTRAL PROTEASE OR AMYLASE; THE PRODUCT CAN BE PACKAGED IN AN AEROSOL CONTAINER FOR USER CONVENIENCE.
Inventors
- 👤 J Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:33
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663; C11D17/00; C11D17/0043
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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |