Patent US180911A successfully refreshed from Google Patents.
US180911A
Expired / Lapsed
US
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Improvement in pipe-connections
Assignee: —
•
Filing: —
•
Granted: 1876-08-08
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Expires: 1893-08-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:21
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04; F16L27/06; F16L27/073; F01; F01N; F01N13/00; F01N13/18; F01N13/1805; F01N13/1827; Y; Y10; Y10S; Y10S285/00; Y10S285/91; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826
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) | 1879-08-08 | 1880-02-07 | 1880-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-08-08 | 1884-02-07 | 1884-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-08-08 | 1888-02-07 | 1888-08-08 | $7700.00 | Window Closed / Lapsed |