US143907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in stench-traps
Assignee: —
•
Filing: —
•
Granted: 1873-10-21
•
Expires: 1890-10-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:47
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/4459
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) | 1876-10-20 | 1877-04-21 | 1877-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1880-10-20 | 1881-04-21 | 1881-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1884-10-20 | 1885-04-21 | 1885-10-21 | $7700.00 | Window Closed / Lapsed |