US2936265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proteolytic enzyme and methods for its production
Assignee: Wyeth Holdings LLC
•
Filing: 1954-10-25
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Granted: 1960-05-10
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Whitehill
- 👤 Frank B Ablondi
- 👤 John H Mowat
- 👤 Krupka George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
C; C14; C14C; C14C1/00; C14C1/06; C14C1/065; A; A23; A23L; A23L13/00; A23L13/70; A23L13/72; A23L13/74; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/58; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/815; Y10S435/816; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A DRY SOLID MATERIAL FREE FROM ASSOCIATED TISSUE AND MYCELIA AND COMPRISING A PROTEOLYTIC ENZYME ELABORATED BY A FUNGUS SELECTED FROM THE GROUP CONSISTING OF THE SPECIES ENTOMOPHTHORA APICULATA, ENTNOMOPHTHORA CORONATA, BASIDIDIOBOLUS RANARUM, CONIDIOBULUS BREFELDIANUS AND CONIDIOBOLUS VILLOSUS, SAID PROTEOLYTIC ENZYME HAVING A MOLECULAR WEIGHT OF ABOUT 30,000, AN ISOELECTRIC POINT OF 10.2, EXERTING OPTIMAL PROTEOLYTIC ACTIVITY AT A PH OF ABOUT 9.0 WHEN MEASURED AGAINST CASEIN, HAVING A SEDIMENTATION CONSTANT OF 2.5X10**-13, A DIFFUSION CONSTANT OF 8.2X10**-7, AN AQUEOUS SOLUTION OF IONIC STRENGTH 0.13 ADJUSTED TO PH 8.5 IN BARBITAL BUFFER EXHIBITING AN ELECROPHORETIC MOBILITY OF 0.43X10**-5, A SOLUTION OF SIMIMILAR IONIC STRENGTH ADJUSTED TO PH 10.5 IN GLYCINE BUFFER EXHIBITING AN ELECTROPHORETIC MOBILITY OF 0.08X10-5 SAID ENZYME BEING STABLE OVER A PH RANGE FROM ABOUT 4.0 TO ABOUT 11.0 AND GIVING A POSITIVE PRECIPITIN REACTION AGAINST A 1:1,000 DILUTION OF SPECIFIC RABBIT ANTISERUM.
Claim 2
Dependent Claim
145 words
A DRY SOLID MATERIAL FREE FROM ASSOCIATED TISSUE AND MYCELIA AND COMPRISING A PROTEOLYTIC ENZYME ELABORATED BY A FUNGUS SELECTED FROM THE GROUP CONSISTING OF THE SPECIES ENTOMOPHTHORA APICULATA, ENTNOMOPHTHORA CORONATA, BASIDIDIOBOLUS RANARUM, CONIDIOBULUS BREFELDIANUS AND CONIDIOBOLUS VILLOSUS, SAID PROTEOLYTIC ENZYME HAVING A MOLECULAR WEIGHT OF ABOUT 30,000, AN ISOELECTRIC POINT OF 10.2, EXERTING OPTIMAL PROTEOLYTIC ACTIVITY AT A PH OF ABOUT 9.0 WHEN MEASURED AGAINST CASEIN, HAVING A SEDIMENTATION CONSTANT OF 2.5X10**-13, A DIFFUSION CONSTANT OF 8.2X10**-7, AN AQUEOUS SOLUTION OF IONIC STRENGTH 0.13 ADJUSTED TO PH 8.5 IN BARBITAL BUFFER EXHIBITING AN ELECROPHORETIC MOBILITY OF 0.43X10**-5, A SOLUTION OF SIMIMILAR IONIC STRENGTH ADJUSTED TO PH 10.5 IN GLYCINE BUFFER EXHIBITING AN ELECTROPHORETIC MOBILITY OF 0.08X10-5 SAID ENZYME BEING STABLE OVER A PH RANGE FROM ABOUT 4.0 TO ABOUT 11.0 AND GIVING A POSITIVE PRECIPITIN REACTION AGAINST A 1:1,000 DILUTION OF SPECIFIC RABBIT ANTISERUM.
References Cited (Backward Citations)
US1882112A
Cited
US2602769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |