US3320972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic tricuspid valve and method of and device for fabricating same
Assignee: Individual
•
Filing: 1964-04-16
•
Granted: 1967-05-23
•
Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Roy F High
- 👤 Kenneth E Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:24
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/2415; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/147; F16K15/1471; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROSTHETIC TRICUSPID VALVE COMPRISING (A) A VALVE HOUSING OF FLEXIBLE MATERIAL HAVING A CYLINDRICAL BORE THERETHROUGH, AND (B) THREE LEAFLETS OF A THIN, PLIABLE AND ELASTIC MATERIAL, EACH LEAFLET HAVING TWO STRAIGHT EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE AND TWO ARCUATE EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE WITH ONE OF SAID ARCUATE EDGES INTERSECTING ONE OF SAID STRAIGHT EDGES AT APPROXIMATELY AT RIGHT INTERIOR ANGLE AND THE OTHER OF SAID ARCUATE EDGES INTERSECTING THE OTHER OF SAID STRAIGHT EDGES AT APPROXIMATELY A RIGHT INTERIOR ANGLE, EACH LEAFLET FURTHER HAVING A SPHEROIDAL SHAPE, THE STRAIGHT EDGES OF EACH LEAFLET MAKING A MATING CONTACT WITH ONE STRAIGHT EDGE OF ANOTHER LEAFLET, AND THE ARCUATE EDGES OF EACH LEAFLET INTEGRALLY TO SAID HOUSING IN SAID CYLINDRICAL BORE.
Claim 2
Dependent Claim
129 words
A PROSTHETIC TRICUSPID VALVE COMPRISING (A) A VALVE HOUSING OF FLEXIBLE MATERIAL HAVING A CYLINDRICAL BORE THERETHROUGH, AND (B) THREE LEAFLETS OF A THIN, PLIABLE AND ELASTIC MATERIAL, EACH LEAFLET HAVING TWO STRAIGHT EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE AND TWO ARCUATE EDGES INTERSECTING AT A LARGE OBTUSE INTERIOR ANGLE WITH ONE OF SAID ARCUATE EDGES INTERSECTING ONE OF SAID STRAIGHT EDGES AT APPROXIMATELY AT RIGHT INTERIOR ANGLE AND THE OTHER OF SAID ARCUATE EDGES INTERSECTING THE OTHER OF SAID STRAIGHT EDGES AT APPROXIMATELY A RIGHT INTERIOR ANGLE, EACH LEAFLET FURTHER HAVING A SPHEROIDAL SHAPE, THE STRAIGHT EDGES OF EACH LEAFLET MAKING A MATING CONTACT WITH ONE STRAIGHT EDGE OF ANOTHER LEAFLET, AND THE ARCUATE EDGES OF EACH LEAFLET INTEGRALLY TO SAID HOUSING IN SAID CYLINDRICAL BORE.
References Cited (Backward Citations)
US3197788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |