US2521713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a microbicidal composition of matter
Assignee: Sunshine Mining Co
•
Filing: 1945-07-23
•
Granted: 1950-09-12
•
Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 Goetz Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:48
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50; C02F1/505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR THE PRODUCTION OF A MICROBICIDAL COMPOSITION OF MATTER, COMPRISING MIXING A WATER SLUDGE OF A SOLID FINELY DIVIDED BASIC SILVER COMPOUND AND FINELY DIVIDED ZINC OXIDE, DIGESTING SAID MIXTURE IN THE PRESENCE OF WATER FOR A PERIOD OF TIME SUFFICIENT TO REDUCE THE SLUDGE PH OF SAID MIXTURE TO APPROXIMATELY 9.
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE PRODUCTION OF A MICROBICIDAL COMPOSITION OF MATTER, COMPRISING MIXING A WATER SLUDGE OF A SOLID FINELY DIVIDED BASIC SILVER COMPOUND AND FINELY DIVIDED ZINC OXIDE, DIGESTING SAID MIXTURE IN THE PRESENCE OF WATER FOR A PERIOD OF TIME SUFFICIENT TO REDUCE THE SLUDGE PH OF SAID MIXTURE TO APPROXIMATELY 9.
References Cited (Backward Citations)
GB191229049A
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GB306547A
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US2038694A
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US2008131A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |