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US3326208A
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Endoscope instrument and obturator therefor
Assignee: American Hospital Supply Corp
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Filing: 1964-07-22
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Granted: 1967-06-20
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Expires: 1984-07-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2516628A
Cited
US2621651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |