US2701559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for exfoliating and collecting diagnostic material from inner walls of hollow viscera
Assignee: Individual
•
Filing: 1951-08-02
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Granted: 1955-02-08
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Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 William A Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B2010/0216; A61B17/00; A61B17/32; A61B2017/320004; A61M; A61M25/00; A61M25/10; A61M2025/1043; A61M2025/1084; A61M2025/1086; A61M29/00; A61M29/02
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) | 1958-02-07 | 1958-08-09 | 1959-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-07 | 1962-08-09 | 1963-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-07 | 1966-08-09 | 1967-02-08 | $7700.00 | Window Closed / Lapsed |