US4436519B1
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US
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US4436519B1 - - Google Patents
Assignee: HENLEY OPERATING COMPANY A CORP. OF TEXAS
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Filing: 1981-05-28
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Granted: 1989-04-04
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Expires: 2001-05-28
Abstract
Abstract A hemostasis valve (1) comprising a body (2) having a central passage, a seal (4) having a central aperture (14) therein, the seal being mounted in the central passage, and a diaphragm (5) having a wall member (37) with a slit (12) therein, the diaphragm being mounted in the central passage, the diaphragm wall member (37) having an inner bottom diaphragm surface (34), and an outer bottom diaphragm surface (21), the slit extending from the inner bottom diaphragm surface to the outer bottom diaphragm surface, the wall member having a diaphragm chamber (11), therewithin.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:46
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/04; A61M39/06; A61M39/0606; A61M2039/062; A61M2039/0633; A61M2039/0646; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7883
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-03 | 1992-10-03 | 1993-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-03 | 1996-10-03 | 1997-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-03 | 2000-10-03 | 2001-04-04 | $7700.00 | Window Closed / Lapsed |