Patent US2392200A successfully refreshed from Google Patents.
Patent US338121A successfully refreshed from Google Patents.
Patent US698266A successfully refreshed from Google Patents.
Patent US404276A successfully refreshed from Google Patents.
Patent US39472A successfully refreshed from Google Patents.
US39472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in treating night-soil for agricultural purposes
Assignee: —
•
Filing: —
•
Granted: 1863-08-11
•
Expires: 1880-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
C; C05; C05F; C05F17/00; C05F17/40
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) | 1866-08-10 | 1867-02-09 | 1867-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1870-08-10 | 1871-02-09 | 1871-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1874-08-10 | 1875-02-09 | 1875-08-11 | $7700.00 | Window Closed / Lapsed |