US2838045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microbicidal bandage
Assignee: ChampionX LLC
•
Filing: 1956-10-29
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Granted: 1958-06-10
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Expires: 1976-10-29
Abstract
No abstract record available.
Inventors
- 👤 John W Ryznar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:23
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2287; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61L2300/00; A61L2300/20; A61L2300/204; A61L2300/208; A61L2300/40; A61L2300/404; A61L2300/406; C08J2335/00; C08J2335/04; C08J2381/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A MICROBICIDAL BANDAGE COMPRISING AN ION EXCHANGE MEMBRANE BEING A FINELY POROUS FILM OF A HOMOGENEOUS MOLECULAR DISPERSION OF A WATER-INSOLUBLE ACID AND ALKALIRESISTANT THERMOSPLASTIC FILM-FORMING POLYMER AND A SUBSTANTIALLY LINEAR POLYELECTROLYTE, AND AN IONIC MICROBICIDAL AGENT ADSORBED ON SAID ION ECAHANGE MEMBRANE.
Claim 2
Dependent Claim
43 words
A MICROBICIDAL BANDAGE COMPRISING AN ION EXCHANGE MEMBRANE BEING A FINELY POROUS FILM OF A HOMOGENEOUS MOLECULAR DISPERSION OF A WATER-INSOLUBLE ACID AND ALKALIRESISTANT THERMOSPLASTIC FILM-FORMING POLYMER AND A SUBSTANTIALLY LINEAR POLYELECTROLYTE, AND AN IONIC MICROBICIDAL AGENT ADSORBED ON SAID ION ECAHANGE MEMBRANE.
References Cited (Backward Citations)
US2510262A
Cited
US2730768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |