Patent US207932A successfully refreshed from Google Patents.
US207932A
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US
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Improvement in surgical dilators
Assignee: —
•
Filing: —
•
Granted: 1878-09-10
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Expires: 1895-09-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:35
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022
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) | 1881-09-09 | 1882-03-11 | 1882-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-09-09 | 1886-03-11 | 1886-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-09-09 | 1890-03-11 | 1890-09-10 | $7700.00 | Window Closed / Lapsed |