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Patent US2487502A successfully refreshed from Google Patents.
US2487502A
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Instrument for electrosurgical resection
Assignee: American Cystoscope Makers Inc
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Filing: 1945-09-26
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Granted: 1949-11-08
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Expires: 1965-09-26
Abstract
No abstract record available.
Inventors
- 👤 Abram I Willinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/149; A61M; A61M1/00; A61M1/71; A61M1/77; A61M3/00; A61M3/02; A61M3/0279; A61M3/0283
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1952617A
Cited
US1813902A
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US1741740A
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US2031020A
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US1971024A
Cited
US2008526A
Cited
US2004559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |