Patent US2817313A successfully refreshed from Google Patents.
US2817313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for microscope slides
Assignee: Technicon International Ltd
•
Filing: 1955-07-20
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Granted: 1957-12-24
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Expires: 1975-07-20
Abstract
No abstract record available.
Inventors
- 👤 Isreeli Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:56
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312742A
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US791158A
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US1205747A
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US1542182A
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US1698396A
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US2058128A
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US2619233A
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US2463664A
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US2522416A
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US2572434A
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US2539802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |