US2791518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making a microbicidal article
Assignee: Permachem Corp
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Filing: 1955-03-21
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Granted: 1957-05-07
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Expires: 1975-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas A Stokes
- 👤 Fred W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:15
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S428/00; Y10S428/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
THE METHOD FOR TREATING AN ARTICLE TO RENDER IT MICROBICADAL TO MICROOGANISMS COMING INTO CONTACT WITH ITS SURFACE, WHICH INCLUDES: WETTING THE ARTICLE SUCCESSIVELY WITH FIRST AND SECIND AQUEOUS SOLUTIONS, THE FIRST SOLUTION COMPRISING A WATER-SOLUBLE BASIC NITROGEN COMPOUND AND A SILVER SALT SOLUBLE IN THE AQUEOUS BASIC NITROGEN COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF A SPARINGLY WATER-SOLUBLE SILVER COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING CATIONS OF AS SUBSTANTIALLY WATER-INSOLUTION COMPOUND O A METAL OTHER THAN SILVER AND ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF THE SUBSTANTALLY WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER, THE CATIONS AND ANIONS OF THE WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER BEING IN DIFFERENT SOLUTIONS; AND SUBSEQUENTLY REMOVING BASIC NITROGEN COMPOUND FROM THE WETTED ARTICLE.
Claim 2
Independent Claim
134 words
THE METHOD FOR TREATING AN ARTICLE TO RENDER IT MICROBICADAL TO MICROOGANISMS COMING INTO CONTACT WITH ITS SURFACE, WHICH INCLUDES: WETTING THE ARTICLE SUCCESSIVELY WITH FIRST AND SECIND AQUEOUS SOLUTIONS, THE FIRST SOLUTION COMPRISING A WATER-SOLUBLE BASIC NITROGEN COMPOUND AND A SILVER SALT SOLUBLE IN THE AQUEOUS BASIC NITROGEN COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF A SPARINGLY WATER-SOLUBLE SILVER COMPOUND, ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING CATIONS OF AS SUBSTANTIALLY WATER-INSOLUTION COMPOUND O A METAL OTHER THAN SILVER AND ONE OF THE SOLUTIONS COMPRISING A COMPOUND FURNISHING ANIONS OF THE SUBSTANTALLY WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER, THE CATIONS AND ANIONS OF THE WATER-INSOLUBLE COMPOUND OF THE METAL OTHER THAN SILVER BEING IN DIFFERENT SOLUTIONS; AND SUBSEQUENTLY REMOVING BASIC NITROGEN COMPOUND FROM THE WETTED ARTICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |