US1424878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowplow
Assignee: Individual
•
Filing: 1920-02-09
•
Granted: 1922-08-08
•
Expires: 1940-02-09
Abstract
No abstract record available.
Inventors
- 👤 Harry R Canfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:21
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06
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) | 1925-08-07 | 1926-02-06 | 1926-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-08-07 | 1930-02-06 | 1930-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-08-07 | 1934-02-06 | 1934-08-08 | $7700.00 | Window Closed / Lapsed |