Patent US75392A successfully refreshed from Google Patents.
US75392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self and john ashcroft
Assignee: —
•
Filing: —
•
Granted: 1868-03-10
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Expires: 1885-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:23
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/082; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7741; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/7913; Y10T137/7914
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) | 1871-03-10 | 1871-09-09 | 1872-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1875-03-10 | 1875-09-09 | 1876-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1879-03-10 | 1879-09-09 | 1880-03-10 | $7700.00 | Window Closed / Lapsed |