US2685800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipet for microanalysis
Assignee: Kopp Scientific Inc
•
Filing: 1952-11-12
•
Granted: 1954-08-10
•
Expires: 1972-11-12
Abstract
No abstract record available.
Inventors
- 👤 Natelson Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:32
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/54; B01L9/543; B01L3/00; B01L3/02; B01L3/021; B01L3/0282; A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31525; A61M5/31531; A61M5/32; A61M5/34; A61M5/346; A61M5/347
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |