US2653893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of applying oligodynamic silver and articles produced thereby
Assignee: Individual
•
Filing: 1948-08-20
•
Granted: 1953-09-29
•
Expires: 1968-08-20
Abstract
No abstract record available.
Inventors
- 👤 Isabella B Romans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:30
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/23; A61L2/238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF TREATING A CONTAINER TO PRESERVE ITS CONTENT, COMPRISING TREATING AT LEAST THE INNER SURFACES OF THE CONTAINER WITH AN IONIC AQUEOUS SOLUTION OF SILVER OXIDE SO AS TO WET THE SAME FOR ABOUT 1 TO 5 MINUTES, THEREBY DEPOSITING AN INVISIBLE LAYER OF IONIC OLIGODYNAMIC SILVER ON THE SURFACE OF THE CONTACTED PORTIONS, THE CONCENTRATION OF SAID SOLUTION BEING AT LEAST SATURATED, AND THEREAFTER DRYING THE CONTAINER.
Claim 2
Independent Claim
70 words
A METHOD OF TREATING A CONTAINER TO PRESERVE ITS CONTENT, COMPRISING TREATING AT LEAST THE INNER SURFACES OF THE CONTAINER WITH AN IONIC AQUEOUS SOLUTION OF SILVER OXIDE SO AS TO WET THE SAME FOR ABOUT 1 TO 5 MINUTES, THEREBY DEPOSITING AN INVISIBLE LAYER OF IONIC OLIGODYNAMIC SILVER ON THE SURFACE OF THE CONTACTED PORTIONS, THE CONCENTRATION OF SAID SOLUTION BEING AT LEAST SATURATED, AND THEREAFTER DRYING THE CONTAINER.
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) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |