US672317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speculum.
Assignee: Individual
•
Filing: 1899-08-16
•
Granted: 1901-04-16
•
Expires: 1919-08-16
Abstract
No abstract record available.
Inventors
- 👤 Willard E Dow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:34
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/227
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) | 1904-04-15 | 1904-10-15 | 1905-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-04-15 | 1908-10-15 | 1909-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-04-15 | 1912-10-15 | 1913-04-16 | $7700.00 | Window Closed / Lapsed |