Patent US2689203A successfully refreshed from Google Patents.
US2689203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of stabilized catalase
Assignee: Armour and Co
•
Filing: 1951-09-27
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Granted: 1954-09-14
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Expires: 1971-09-27
Abstract
No abstract record available.
Inventors
- 👤 August L Lolli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A STABLE CATALASE PRODUCT, COMPRISING AN AQUEOUS SOLUTION OF CATALASE AND SODIUM CITRATE.
Claim 2
Dependent Claim
13 words
A STABLE CATALASE PRODUCT, COMPRISING AN AQUEOUS SOLUTION OF CATALASE AND SODIUM CITRATE.
References Cited (Backward Citations)
US2068623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |