US1247166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating soil.
Assignee: Individual
•
Filing: 1917-01-15
•
Granted: 1917-11-20
•
Expires: 1937-01-15
Abstract
No abstract record available.
Inventors
- 👤 John Steelquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:39
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/11
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) | 1920-11-19 | 1921-05-21 | 1921-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-11-19 | 1925-05-21 | 1925-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-11-19 | 1929-05-21 | 1929-11-20 | $7700.00 | Window Closed / Lapsed |