Patent US3399668A successfully refreshed from Google Patents.
US3399668A
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Disposable cholangiography catheter
Assignee: EDWARD S LUNDGREN
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Filing: 1966-02-28
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Granted: 1968-09-03
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Edward S Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:58
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/04; A61L29/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3017884A
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US3055361A
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US3168092A
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US3136316A
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US3154080A
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US3128769A
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US3313291A
Cited
US3335724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |