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US2602444A
Expired / Lapsed
US
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Ureter block for use in pyelograms
Assignee: Individual
•
Filing: 1950-10-02
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Granted: 1952-07-08
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Expires: 1970-10-02
Abstract
No abstract record available.
Inventors
- 👤 David R Stanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:56
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04; A61B6/0407; A61B6/0414; G; G21; G21K; G21K1/00; G21K1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US329682A
Cited
US2547727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |