Patent GB372654A successfully refreshed from Google Patents.
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Cell scraping device
Assignee: Merck and Co Inc
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Filing: 1979-05-07
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Granted: 1981-11-10
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Expires: 1999-05-07
Abstract
No abstract record available.
Inventors
- 👤 Roy W. Grabner
- 👤 William J. McAleer
- 👤 Edward L. Paul
Bibliographic Details
Application Number
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Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:58
CPC Classifications
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Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
10 words
The ornamental design for a cell scraping device, as shown.
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) | 1984-11-09 | 1985-05-11 | 1985-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-09 | 1989-05-11 | 1989-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-09 | 1993-05-11 | 1993-11-10 | $7700.00 | Window Closed / Lapsed |