US202618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in hand-reamers
Assignee: —
•
Filing: —
•
Granted: 1878-04-16
•
Expires: 1895-04-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/108; Y; Y10; Y10T; Y10T408/00; Y10T408/60; Y10T408/62; Y10T408/65; Y10T408/675; Y10T408/6793
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) | 1881-04-15 | 1881-10-15 | 1882-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-04-15 | 1885-10-15 | 1886-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-04-15 | 1889-10-15 | 1890-04-16 | $7700.00 | Window Closed / Lapsed |