US2767703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exploratory device for cell specimens
Assignee: Individual
•
Filing: 1955-01-07
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Granted: 1956-10-23
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Expires: 1975-01-07
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Nieburgs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:24
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/04; A61B17/00; A61B17/22; A61B17/221; A61B2017/2212; A61B17/32; A61B2017/320004
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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |