Patent US423097A successfully refreshed from Google Patents.
US423097A
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US
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Assignee: —
•
Filing: —
•
Granted: 1890-03-11
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Expires: 1907-03-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:28
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/12; F16T1/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3102; Y10T137/3105; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7841; Y10T137/8593; Y10T137/87917; Y10T137/88022; Y10T137/8803
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) | 1893-03-10 | 1893-09-09 | 1894-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-03-10 | 1897-09-09 | 1898-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-03-11 | 1901-09-10 | 1902-03-12 | $7700.00 | Window Closed / Lapsed |