US2853449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slime preventative compositions and methods
Assignee: Individual
•
Filing: 1955-09-02
•
Granted: 1958-09-23
•
Expires: 1975-09-02
Abstract
No abstract record available.
Inventors
- 👤 Moudry Zdenek Vaclav
- 👤 Marie K Moudry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:31
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A METHOD FOR PRODUCING A SLIME INHIBITING COMPOSITIONS COMPRISING DISSOLVING 5-12.5 PARTS BY WEIGHT PHENYLMERCURIC ACETATE IN 85-62.5 PARTS BY WEIGHT OF A SOLVENT SELECTED FROM THE GROUP CONSISTING OF THE WATER SOLUBLE GLYCOLS AND THE LOWER ALKYL ETHERS THEREOF AND THEN COMBINING WITH SUCH SOLUTION, WITH CONTINUAL AGITATION AND AT A TEMPERATURE NOT EXCEEDING ABOUT 30*C., 10-25 PARTS BY WEIGHT OF AN AQUEOUS COLLOIDAL SUSPENSION OF METALLIC SILVER MICROPARTICLES PRODUCED BY REDUCING SILVER NITRATE IN AN AQUEOUS SOLUTION CONTAINING, A SUBSTANTIAL PROPORTION OF AN IONIAZABLE-HALOGEN-FREE, SULFUR-FREE GELATIN HAVING A VISCOSITY OF 20-40 MILLIPOISES, AN ISOELECTRIC POINT OF PH 7.8-8.3 AND A PH OF 3-5.5, SAID AQUEOUS DISPERSION PERSION CONTAINING METALLIC SILVER PARTICLES AMOUNTING TO 0.3-1.0 PART BY WEIGHT OF THE TOTAL COMPOSITION.
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |