US3047170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth handling apparatus
Assignee: HY DYNAMIC CO
•
Filing: 1960-06-13
•
Granted: 1962-07-31
•
Expires: 1980-06-13
Abstract
No abstract record available.
Inventors
- 👤 Frank G Hough
- 👤 Robert M Peterson
- 👤 Wallace H Gilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:54
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/32; E02F3/36; E02F3/96; E02F3/963; E02F3/964
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2319921A
Cited
US2768499A
Cited
US2846095A
Cited
US2817448A
Cited
US2878951A
Cited
US2890805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |