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US2837055A
Expired / Lapsed
US
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Tissue-holder receptacles
Assignee: Technicon International Ltd
•
Filing: 1954-12-09
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Granted: 1958-06-03
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Expires: 1974-12-09
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:27
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/30; G01N1/31; G01N2001/315
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US729055A
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US1236832A
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US2302698A
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US2393580A
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US2360616A
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US2369592A
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US2646807A
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US2539802A
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US2783180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |