US171440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in water-pipes
Assignee: —
•
Filing: —
•
Granted: 1875-12-21
•
Expires: 1892-12-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:31
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/18; F16L58/182; Y; Y10; Y10S; Y10S122/00; Y10S122/13; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49911; Y10T29/49913; Y10T29/49925; Y10T29/49927; Y10T29/49929; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1878-12-20 | 1879-06-21 | 1879-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1882-12-20 | 1883-06-21 | 1883-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1886-12-20 | 1887-06-21 | 1887-12-21 | $7700.00 | Window Closed / Lapsed |