Patent US446757A successfully refreshed from Google Patents.
US446757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Erastus p
Assignee: —
•
Filing: —
•
Granted: 1891-02-17
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Expires: 1908-02-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:58
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/025; F16K15/026; F16K15/06; F16K15/063; F16K15/18; F16K15/182; F16K17/00; F16K17/02; F16K17/04; F16K17/0486; F16K2200/00; F16K2200/30; F16K2200/303; F16K2200/304; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7939; Y10T137/8593
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) | 1894-02-16 | 1894-08-18 | 1895-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1898-02-16 | 1898-08-18 | 1899-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1902-02-17 | 1902-08-19 | 1903-02-18 | $7700.00 | Window Closed / Lapsed |