US3512518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush device for collecting cellular or bacterial specimens
Assignee: Individual
•
Filing: 1966-11-14
•
Granted: 1970-05-19
•
Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Sidney Mishkin
- 👤 Robert E Bidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B10/04; A61B2010/0216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1327757A
Cited
US1891864A
Cited
US1942205A
Cited
GB490174A
Cited
US2601513A
Cited
US2955591A
Cited
FR1134630A
Cited
US2955592A
Cited
US3392421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |