US2901944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife holder clamp for microtome
Assignee: American Optical Corp
•
Filing: 1957-08-22
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Granted: 1959-09-01
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Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Sparer Seno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:40
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/04; G01N1/06; G01N2001/061; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/929; Y10T83/9457; Y10T83/9488
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |