Patent US3731394A successfully refreshed from Google Patents.
US77690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peter white
Assignee: —
•
Filing: —
•
Granted: 1868-05-05
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Expires: 1885-05-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:59
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/598; Y10T137/6161; Y10T137/6164; Y10T137/6167; Y10T137/6171; Y10T137/7722; Y10T137/7837; Y10T137/7904
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) | 1871-05-05 | 1871-11-04 | 1872-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1875-05-05 | 1875-11-04 | 1876-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1879-05-05 | 1879-11-04 | 1880-05-05 | $7700.00 | Window Closed / Lapsed |