Patent US2328538A successfully refreshed from Google Patents.
Patent US3399672A successfully refreshed from Google Patents.
US3399672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dressing
Assignee: Johnson and Johnson
•
Filing: 1966-02-08
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Granted: 1968-09-03
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Expires: 1986-02-08
Abstract
No abstract record available.
Inventors
- 👤 Jack H Gardner
- 👤 Jr George A Crowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:02
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/00051; A61F13/00063; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/513; A61F13/51305; A61F2013/00089; A61F2013/00314; A61F2013/00319; A61F2013/51059; A61F2013/51061; A61F2013/51355; A61F2013/51372; A61F13/514; A61F13/51401; A61F2013/51409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A DRESSING COMPRISING AN ABSORBENT SUBSTRATE AND A HYDROPHOBIC, SURFACTANT TREATED FILM FACING COVERING PORTIONS OF AT LEAST ONE SURFACE OF SAID ABSORBENT, SAID FILM HAVING AN OUTER SURFACE AND A SURFACE CONTACTING SAID ABSORBENT, SAID FILM CONTAINING A SERIES OF OPENINGS THROUGH WHICH WOULD EXUDATE MAY PASS TO SAID ABSORBENT SUBSTRATE, THE OUTER SURFACE OF SAID FILM HAVING BEEN TREATED DIRECTLY WITH A SURFACE ACTIVE AGENT, THE SURFACE TENSION OF THE OUTER SURFACE OF SAID TREATED FILM FACING BEING SOMEWHAT HIGHER THAN THE SURFACE TENSION OF WOUND EXUDATE, BY VIRTUE OF WHICH WOUND FLUIDS WHICH CONTACT THE FACING WILL WET THE SAME AND WILL TEND TO SPREAD LATERALLY OVER SAID SURFACE OF SAID FACING.
Claim 2
Dependent Claim
115 words
A DRESSING COMPRISING AN ABSORBENT SUBSTRATE AND A HYDROPHOBIC, SURFACTANT TREATED FILM FACING COVERING PORTIONS OF AT LEAST ONE SURFACE OF SAID ABSORBENT, SAID FILM HAVING AN OUTER SURFACE AND A SURFACE CONTACTING SAID ABSORBENT, SAID FILM CONTAINING A SERIES OF OPENINGS THROUGH WHICH WOULD EXUDATE MAY PASS TO SAID ABSORBENT SUBSTRATE, THE OUTER SURFACE OF SAID FILM HAVING BEEN TREATED DIRECTLY WITH A SURFACE ACTIVE AGENT, THE SURFACE TENSION OF THE OUTER SURFACE OF SAID TREATED FILM FACING BEING SOMEWHAT HIGHER THAN THE SURFACE TENSION OF WOUND EXUDATE, BY VIRTUE OF WHICH WOUND FLUIDS WHICH CONTACT THE FACING WILL WET THE SAME AND WILL TEND TO SPREAD LATERALLY OVER SAID SURFACE OF SAID FACING.
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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |