US3336918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiopaque, urethane-coated catheter and method for coating same
Assignee: United States Catheter and Instrument Corp
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Filing: 1962-12-24
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Granted: 1967-08-22
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Expires: 1982-12-24
Abstract
No abstract record available.
Inventors
- 👤 Norman C Jeckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:21
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/14; A61L29/18; A61B; A61B10/00; A61L29/08; A61L29/085; A61M; A61M25/00; A61M25/0043; A61M25/0045; A61M25/01; A61M25/0105; A61M25/0108; A61B90/00; A61B90/39; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A RADIOPAQUE FABRIC CARDIAC CATHETER UNIFORMLY COATED WITH A MIXTUE OF POLYURETHANE AND 5 TO 50% BY WEIGHT OF SAID MIXTURE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD AND BISMUTH.
Claim 2
Dependent Claim
34 words
A RADIOPAQUE FABRIC CARDIAC CATHETER UNIFORMLY COATED WITH A MIXTUE OF POLYURETHANE AND 5 TO 50% BY WEIGHT OF SAID MIXTURE OF A METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD AND BISMUTH.
Claim 3
Independent Claim
104 words
A METHOD OF COATING ARTICLES COMPRISING PREPARING A REACTIVE MIXTURE INCLUDING A POLYHYDROXYL MATERIAL AND A DIISOCYANTE-BEARING PRODUCT TO FORM A POLYURETHANE, INCLUDING IN SAID MIXTURE A FINELY DIVIDED RADIOPAQUE METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD AND BISMUTH AND NORMALLY EFFECTIVE TO GREATLY ACCELERATED THE REACTION BETWEEN SAID POLYHYDROXYL MATERIAL AND SAID DIISOCYANATE-BEARING PRODUCT, INHIBITING THE ACCELERATED REACTION BETWEEN SAID POLYHYDROXYL MATERIAL AND SAID DIISOCYANATE-BEARING PRODUCT IN THE PRESENCE OF SAID METAL BY INCORPORATING IN SAID REACTIVE MIXTURE A SUFFICIENT AMOUNT OF DIGLYCOLIC ACID TO INHIBIT SAID ACCELERATED REACTION, AND COATING AN ARTICLE WITH THE RESULTANT PRODUCT WHILE SAID REACTION CONTINUES.
Claim 4
Independent Claim
104 words
A METHOD OF COATING ARTICLES COMPRISING PREPARING A REACTIVE MIXTURE INCLUDING A POLYHYDROXYL MATERIAL AND A DIISOCYANTE-BEARING PRODUCT TO FORM A POLYURETHANE, INCLUDING IN SAID MIXTURE A FINELY DIVIDED RADIOPAQUE METAL SELECTED FROM THE GROUP CONSISTING OF TIN, LEAD AND BISMUTH AND NORMALLY EFFECTIVE TO GREATLY ACCELERATED THE REACTION BETWEEN SAID POLYHYDROXYL MATERIAL AND SAID DIISOCYANATE-BEARING PRODUCT, INHIBITING THE ACCELERATED REACTION BETWEEN SAID POLYHYDROXYL MATERIAL AND SAID DIISOCYANATE-BEARING PRODUCT IN THE PRESENCE OF SAID METAL BY INCORPORATING IN SAID REACTIVE MIXTURE A SUFFICIENT AMOUNT OF DIGLYCOLIC ACID TO INHIBIT SAID ACCELERATED REACTION, AND COATING AN ARTICLE WITH THE RESULTANT PRODUCT WHILE SAID REACTION CONTINUES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |