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US213356A
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Improvement in dental saliva-ejectors
Assignee: —
•
Filing: —
•
Granted: 1879-03-18
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Expires: 1896-03-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:54
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/06; A61C17/065
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) | 1882-03-17 | 1882-09-16 | 1883-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1886-03-17 | 1886-09-16 | 1887-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1890-03-17 | 1890-09-16 | 1891-03-18 | $7700.00 | Window Closed / Lapsed |