US1762441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cleaning and digging ditches
Assignee: Individual
•
Filing: 1927-10-14
•
Granted: 1930-06-10
•
Expires: 1947-10-14
Abstract
No abstract record available.
Inventors
- 👤 Johnson Hjalmar Emanuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:36
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/835; A01D34/86; E; E02; E02F; E02F3/00; E02F3/04; E02F3/18; E02F3/186; E02F3/20
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) | 1933-06-09 | 1933-12-09 | 1934-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-09 | 1937-12-09 | 1938-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-09 | 1941-12-09 | 1942-06-10 | $7700.00 | Window Closed / Lapsed |