Patent US472023A successfully refreshed from Google Patents.
US472023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Type-writing machine
Assignee: —
•
Filing: —
•
Granted: 1892-04-05
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Expires: 1909-04-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:05
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/76; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1574
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) | 1895-04-05 | 1895-10-05 | 1896-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1899-04-05 | 1899-10-05 | 1900-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1903-04-06 | 1903-10-06 | 1904-04-06 | $7700.00 | Window Closed / Lapsed |