Patent US587812A successfully refreshed from Google Patents.
US587812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1897-08-10
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Expires: 1914-08-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
B; B42; B42F; B42F13/00; B42F13/16; B42F13/20; B42F13/22; B42F13/26
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) | 1900-08-10 | 1901-02-09 | 1901-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1904-08-10 | 1905-02-09 | 1905-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1908-08-10 | 1909-02-09 | 1909-08-11 | $7700.00 | Window Closed / Lapsed |