US306523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushing-tank
Assignee: —
•
Filing: —
•
Granted: 1884-10-14
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Expires: 1901-10-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:24
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/16; E03D1/165; E02; E02B; E02B2201/00; E02B2201/50; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2774; Y10T137/2795; Y10T137/2924; Y10T137/8593; Y10T137/86236; Y10T137/86252; Y10T137/8807
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) | 1887-10-14 | 1888-04-14 | 1888-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-10-14 | 1892-04-14 | 1892-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-10-14 | 1896-04-14 | 1896-10-14 | $7700.00 | Window Closed / Lapsed |