US2955591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive cytologic instruments
Assignee: Individual
•
Filing: 1954-05-20
•
Granted: 1960-10-11
•
Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth S Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:28
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/04; A61B1/00; A61B1/00131; A61B1/00135; A61B1/12; A61B1/267; A61B1/2676; A61B2010/0216; A61B17/00; A61B17/32; A61B2017/320004; A61B2017/320012; Y; Y10; Y10S; Y10S128/00; Y10S128/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US680936A
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US899175A
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US950065A
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US977825A
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US1150214A
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GB176251A
Cited
US1711352A
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US2607342A
Cited
US2701559A
Cited
US2765792A
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US2739585A
Cited
US2839049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |