US98949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in putty-knife
Assignee: —
•
Filing: —
•
Granted: 1870-01-18
•
Expires: 1887-01-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:05
CPC Classifications
B; B26; B26B; B26B1/00; B26B1/02; B26B1/04; B26B1/046
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1873-01-17 | 1873-07-19 | 1874-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1877-01-17 | 1877-07-19 | 1878-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1881-01-17 | 1881-07-19 | 1882-01-18 | $7700.00 | Window Closed / Lapsed |