US3069033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axially and circumferentially movable boom for digging apparatus
Assignee: Individual
•
Filing: 1960-03-18
•
Granted: 1962-12-18
•
Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Ferwerda Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:28
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/283; E02F3/286; E02F3/30; E02F3/306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |