US230948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast-steel plate for edge-tools
Assignee: —
•
Filing: —
•
Granted: 1880-08-10
•
Expires: 1897-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:41
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/004; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939; Y10T; Y10T407/00; Y10T407/26; Y10T407/27; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12653
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) | 1883-08-10 | 1884-02-09 | 1884-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1887-08-10 | 1888-02-09 | 1888-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1891-08-10 | 1892-02-09 | 1892-08-10 | $7700.00 | Window Closed / Lapsed |