US3180337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vascular everting device
Assignee: National Research Council Canada
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Filing: 1963-04-25
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Granted: 1965-04-27
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Antoni J Smialowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:09
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/11; A61B2017/1107; A61B2017/1121; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53657
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A VASCULAR EVERTER COMPRISING A CYLINDRICAL SLEEVE, A PLUNGER MOUNTED FOR RECIPROCAL MOVEMENT IN SAID SLEEVE AND HAVING A MAJOR CONSTANT DIAMETER PORTION, A RADIALLY DIRECTED ANNULAR SHOULDER LYING IN A PLANE SUBSTANTIALLY NORMAL TO THE AXIS OF SAID PLUNGER SAID SHOULDER BEING CONTIGUOUS WITH AND EXTENDING INWARDLY FROM ONE END OF SAID CONSTANT DIAMETER PORTION, AND A CONICAL PORTION HAVING A MAXIMUM DIAMETER LESS THAN THAT OF SAID CONSTANT DIAMETER PORTION AND BEING CONTIGUOUS WITH AND EXTENDING AXIALLY FROM SAID SHOULDER, AND AN EVERTING-RETAINING ANNULAR MEMBER OF ELASTIC MATERIAL HAVING AN AXIAL OPENING IN UNSTRETCHED CONDITION THEREOF OF A DIAMETER LESS THAN THAT OF SAID CONSTANT DIAMETER PORTION AND BEING SLEEVED IN STRETCHED CONDITION UPON SAID CONSTANT DIAMETER PORTION FOR SNUG ENGAGEMENT THEREWITH.
Claim 2
Dependent Claim
124 words
A VASCULAR EVERTER COMPRISING A CYLINDRICAL SLEEVE, A PLUNGER MOUNTED FOR RECIPROCAL MOVEMENT IN SAID SLEEVE AND HAVING A MAJOR CONSTANT DIAMETER PORTION, A RADIALLY DIRECTED ANNULAR SHOULDER LYING IN A PLANE SUBSTANTIALLY NORMAL TO THE AXIS OF SAID PLUNGER SAID SHOULDER BEING CONTIGUOUS WITH AND EXTENDING INWARDLY FROM ONE END OF SAID CONSTANT DIAMETER PORTION, AND A CONICAL PORTION HAVING A MAXIMUM DIAMETER LESS THAN THAT OF SAID CONSTANT DIAMETER PORTION AND BEING CONTIGUOUS WITH AND EXTENDING AXIALLY FROM SAID SHOULDER, AND AN EVERTING-RETAINING ANNULAR MEMBER OF ELASTIC MATERIAL HAVING AN AXIAL OPENING IN UNSTRETCHED CONDITION THEREOF OF A DIAMETER LESS THAN THAT OF SAID CONSTANT DIAMETER PORTION AND BEING SLEEVED IN STRETCHED CONDITION UPON SAID CONSTANT DIAMETER PORTION FOR SNUG ENGAGEMENT THEREWITH.
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |