Patent US256723A successfully refreshed from Google Patents.
US256723A
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Assignee: —
•
Filing: —
•
Granted: 1882-04-18
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Expires: 1899-04-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:14
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/46; Y; Y10; Y10S; Y10S70/00; Y10S70/27; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5128; Y10T70/5133; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7655; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8541; Y10T70/8595; Y10T70/8973
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) | 1885-04-17 | 1885-10-17 | 1886-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1889-04-17 | 1889-10-17 | 1890-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1893-04-17 | 1893-10-17 | 1894-04-18 | $7700.00 | Window Closed / Lapsed |