US336112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined eraser and knife
Assignee: —
•
Filing: —
•
Granted: 1886-02-16
•
Expires: 1903-02-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
B; B26; B26B; B26B11/00
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) | 1889-02-15 | 1889-08-17 | 1890-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1893-02-15 | 1893-08-17 | 1894-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1897-02-15 | 1897-08-17 | 1898-02-16 | $7700.00 | Window Closed / Lapsed |