Patent US2662445A successfully refreshed from Google Patents.
US2662445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microtome knife
Assignee: Individual
•
Filing: 1950-08-17
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Granted: 1953-12-15
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Expires: 1970-08-17
Abstract
No abstract record available.
Inventors
- 👤 Jr George W Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:23
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/06; G01N2001/061; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2272; Y10T407/2282; Y10T407/2284; Y10T407/2286; Y10T83/00; Y10T83/929; Y10T83/9457; Y10T83/9488; Y10T83/949
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) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |