US3375310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making surgical catheters
Assignee: Bio-Med Plastics Inc
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Filing: 1964-02-11
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Granted: 1968-03-26
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Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Wilbur R Koehn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:38
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/18; A; A61; A61B; A61B17/00; A61B17/34; A61B17/3415; A61B17/3417; A61L; A61L29/00; A61L29/08; A61L29/085; A61M; A61M25/00; A61M25/0009; A61M25/01; A61M25/06; A61M25/0606; B29; B29C; B29C41/00; B29C41/02; B29C41/14; A61M25/065; A61M2025/0656
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
THE METHOD OF FABRICATING A CATHETER NEEDLE FOR INSERTION INTO A BODY CAVITY COMPRISING A CATHETER AND PENETRATING ELEMENT WHEREIN THE PENETRATING ELEMENT IS ADAPTED TO BE WITHDRAWN BY SLIDING THE PENETRATING ELEMENT REARWARDLY WHILE THE CATHETER IS BEING HELD FOLLOWING INSERTION OF THE CATHETER NEEDLE INTO THE BODY CAVITY COMPRISING THE STEPS OF: PROVIDING A PENETRATING ELEMENT HAVA HUB AT ONE END AND A POINTED END AT THE OTHER AND WITH AN INTERMEDIARY SHANK THEREBETWEEN; DIPPING THE HUB AND SHANK OF THE PENETRATING ELEMENT INTO A PLASTIC RESIN IN LIQUID PHASE TO A LEVEL ADJACENT ITS POINTED END TO COAT THE SHANK AND HUB WITH A CONTINUOUS LAYER OF LIQUID RESIN; THEREAFTER SUBJECTING THE PLASTIC RESIN WITH A FIRST HEAT APPLICATION TO ALTER THE VISOSITY OF THE PLASTIC RESIN COATING TO A PREDETERMINED LEVEL AND SUBSTANTIALLY SIMULTANEOUSLY SUSPENDING THE COATED SHANK AND HUB FROM THE POINTED END OF THE PENETRATING ELEMENT PERMITTING THE RESIN LAYER TO RUN OFF AND FLOW UNDER THE INFLUENCE OF GRAVITY SUFFICIENTLY TO OBTAIN A PREDETERMINED TAPER AND THICKNESS SO AS TO PRODUCE A TUBULAR WALL OF GRADUALLY AND PROGRESSIVELY INCREADING THICKNESS FROM A THIN END HAVING A SUBSTANTIAL KNIFE EDGE ADJACENT THE POINTED END OF THE PENETRATING ELEMENT ALONG THE SHANK THEREOF TOWARD
Claim 2
Independent Claim
209 words
THE METHOD OF FABRICATING A CATHETER NEEDLE FOR INSERTION INTO A BODY CAVITY COMPRISING A CATHETER AND PENETRATING ELEMENT WHEREIN THE PENETRATING ELEMENT IS ADAPTED TO BE WITHDRAWN BY SLIDING THE PENETRATING ELEMENT REARWARDLY WHILE THE CATHETER IS BEING HELD FOLLOWING INSERTION OF THE CATHETER NEEDLE INTO THE BODY CAVITY COMPRISING THE STEPS OF: PROVIDING A PENETRATING ELEMENT HAVA HUB AT ONE END AND A POINTED END AT THE OTHER AND WITH AN INTERMEDIARY SHANK THEREBETWEEN; DIPPING THE HUB AND SHANK OF THE PENETRATING ELEMENT INTO A PLASTIC RESIN IN LIQUID PHASE TO A LEVEL ADJACENT ITS POINTED END TO COAT THE SHANK AND HUB WITH A CONTINUOUS LAYER OF LIQUID RESIN; THEREAFTER SUBJECTING THE PLASTIC RESIN WITH A FIRST HEAT APPLICATION TO ALTER THE VISOSITY OF THE PLASTIC RESIN COATING TO A PREDETERMINED LEVEL AND SUBSTANTIALLY SIMULTANEOUSLY SUSPENDING THE COATED SHANK AND HUB FROM THE POINTED END OF THE PENETRATING ELEMENT PERMITTING THE RESIN LAYER TO RUN OFF AND FLOW UNDER THE INFLUENCE OF GRAVITY SUFFICIENTLY TO OBTAIN A PREDETERMINED TAPER AND THICKNESS SO AS TO PRODUCE A TUBULAR WALL OF GRADUALLY AND PROGRESSIVELY INCREADING THICKNESS FROM A THIN END HAVING A SUBSTANTIAL KNIFE EDGE ADJACENT THE POINTED END OF THE PENETRATING ELEMENT ALONG THE SHANK THEREOF TOWARD
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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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |