US3228894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon tungsten members
Assignee: United States Catheter and Instrument Corp
•
Filing: 1962-12-24
•
Granted: 1966-01-11
•
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
2026-10-22 18:45
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A RADIOPAQUE MATERIAL COMPRISING A SOLID FLUOROCARON POLYMER AND SUFFICIENT TUNGSTEN INTIMATELY MIXED THEREWITH TO RENDER SAID MATERIAL RADIOPAQUE.
Claim 2
Dependent Claim
19 words
A RADIOPAQUE MATERIAL COMPRISING A SOLID FLUOROCARON POLYMER AND SUFFICIENT TUNGSTEN INTIMATELY MIXED THEREWITH TO RENDER SAID MATERIAL RADIOPAQUE.
References Cited (Backward Citations)
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US3094585A
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US2752637A
Cited
US2857915A
Cited
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Cited
US2985918A
Cited
US3075925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |