US1677671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ureteral stone extractor and dilator
Assignee: Individual
•
Filing: 1926-07-02
•
Granted: 1928-07-17
•
Expires: 1946-07-02
Abstract
No abstract record available.
Inventors
- 👤 Wilford A Councill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:03
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-07-17 | 1932-01-16 | 1932-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-17 | 1936-01-16 | 1936-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-17 | 1940-01-16 | 1940-07-17 | $7700.00 | Window Closed / Lapsed |