US3456641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible endoscope for photographing diseased parts in cancer diagnosis
Assignee: Toshiba Corp
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Filing: 1965-09-30
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Granted: 1969-07-22
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Expires: 1985-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ryosuke Yokota
- 👤 Shigehiko Fuwa
- 👤 Shinichi Kawashima
- 👤 Yutaka Matsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:14
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/04; A61B1/05; G; G02; G02B; G02B23/00; G02B23/24; G02B23/2407; G02B23/2461; G02B23/2469
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |