Patent US5108923A successfully refreshed from Google Patents.
Patent US3235446A successfully refreshed from Google Patents.
US3235446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iodinated polyurethane foams and films
Assignee: IND BIOLOGY LAB Inc
•
Filing: 1961-07-12
•
Granted: 1966-02-15
•
Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Morris V Shelanski
- 👤 Levenson Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:14
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S521/00; Y10S521/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN ANTISEPTIC FOAM COMPRISING A POLYURETHANE FOAM MADE BY REACTING A MEMBER OF THE GROUP CONSISTING OF POLYESTERS CONTAINING TERMINAL HYDROXY GROUPS, POLYETHERS CONTAINING TERMINAL HYDROXY GROUPS AND SURFACTANTS CONTAINING TERMINAL HYDROXY GROUPS WITH AN ORGANIC DI-SIOCYANATE,SAID POLYURETHANE FOAM BEING COMPLEXED WITH IODINE AND BEING CAPABLE OF SLOWLY RELEASING EQUILIBRIUM AMOUNTS OF IODINE IN WATER.
Claim 2
Dependent Claim
55 words
AN ANTISEPTIC FOAM COMPRISING A POLYURETHANE FOAM MADE BY REACTING A MEMBER OF THE GROUP CONSISTING OF POLYESTERS CONTAINING TERMINAL HYDROXY GROUPS, POLYETHERS CONTAINING TERMINAL HYDROXY GROUPS AND SURFACTANTS CONTAINING TERMINAL HYDROXY GROUPS WITH AN ORGANIC DI-SIOCYANATE,SAID POLYURETHANE FOAM BEING COMPLEXED WITH IODINE AND BEING CAPABLE OF SLOWLY RELEASING EQUILIBRIUM AMOUNTS OF IODINE IN WATER.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |