Patent US3496930A successfully refreshed from Google Patents.
US3496930A
Expired / Lapsed
US
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Cystoscope and deflectable obturator
Assignee: Circon Corp
•
Filing: 1966-10-03
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Granted: 1970-02-24
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Reinhold D Wappler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:49
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1267066A
Cited
US1453975A
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US1770653A
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US2079233A
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US2076741A
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US2584619A
Cited
US2907321A
Cited
US3144020A
Cited
US3326208A
Cited
US3314431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |