Patent US361806A successfully refreshed from Google Patents.
US361806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental-engine brush
Assignee: —
•
Filing: —
•
Granted: 1887-04-26
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Expires: 1904-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:27
CPC Classifications
A; A46; A46B; A46B9/00; A46B9/02; A46B9/04; A61; A61C; A61C17/00; A46B2200/00; A46B2200/10; A46B2200/1066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1890-04-25 | 1890-10-25 | 1891-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1894-04-25 | 1894-10-25 | 1895-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1898-04-25 | 1898-10-25 | 1899-04-26 | $7700.00 | Window Closed / Lapsed |