US438041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Robert l
Assignee: —
•
Filing: —
•
Granted: 1890-10-07
•
Expires: 1907-10-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492
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) | 1893-10-06 | 1894-04-07 | 1894-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-10-06 | 1898-04-07 | 1898-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-10-07 | 1902-04-08 | 1902-10-08 | $7700.00 | Window Closed / Lapsed |