Patent US183279A successfully refreshed from Google Patents.
US183279A
Expired / Lapsed
US
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Improvement in drain-traps
Assignee: —
•
Filing: —
•
Granted: 1876-10-17
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Expires: 1893-10-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:03
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/042; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4463; Y10T137/4471; Y10T137/4478; Y10T137/4493; Y10T137/7287; Y10T137/7339; Y10T137/7722; Y10T137/7837; 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) | 1879-10-17 | 1880-04-17 | 1880-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-10-17 | 1884-04-17 | 1884-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-10-17 | 1888-04-17 | 1888-10-17 | $7700.00 | Window Closed / Lapsed |