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Patent US2418751A successfully refreshed from Google Patents.
US2418751A
Expired / Lapsed
US
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Pipette washer
Assignee: Hynson Westcott and Dunning Inc
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Filing: 1944-05-03
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Granted: 1947-04-08
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Expires: 1964-05-03
Abstract
No abstract record available.
Inventors
- 👤 John H Brewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:27
CPC Classifications
B; B01; B01L; B01L13/00; B01L13/02; B01L3/00; B01L3/02; B01L3/021; B01L3/0213; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2842; Y10T137/2924; Y10T137/8593; Y10T137/85946
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) | 1950-04-07 | 1950-10-07 | 1951-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-07 | 1954-10-07 | 1955-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-07 | 1958-10-07 | 1959-04-08 | $7700.00 | Window Closed / Lapsed |