Patent US2655154A successfully refreshed from Google Patents.
US2655154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valvulotome
Assignee: Individual
•
Filing: 1952-12-05
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Granted: 1953-10-13
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Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Richter Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:54
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320016; A61B17/3205; A61B17/3207; A61B17/320725; A61B17/22; A61B2017/22097; A61B90/00; A61B90/06
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) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |