Patent US1731439A successfully refreshed from Google Patents.
US181940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in hose-pipes
Assignee: —
•
Filing: —
•
Granted: 1876-09-05
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Expires: 1893-09-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/03; F04; F04B; F04B39/00; F04B39/10; F04B39/102; F04B39/1033; F16K15/035; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7898; Y10T137/7903
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) | 1879-09-05 | 1880-03-06 | 1880-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-09-05 | 1884-03-06 | 1884-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-09-05 | 1888-03-06 | 1888-09-05 | $7700.00 | Window Closed / Lapsed |