US2516628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope and obturator therefor
Assignee: American Cystoscope Makers Inc
•
Filing: 1946-01-31
•
Granted: 1950-07-25
•
Expires: 1966-01-31
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Held
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/307; A61B1/12; A61B1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880551A
Cited
US2212484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |