US3527362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane attachment for backhoe
Assignee: KENNETH W ALLEN
•
Filing: 1968-04-18
•
Granted: 1970-09-08
•
Expires: 1988-04-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C23/44; E; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/963
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2921701A
Cited
US2790568A
Cited
US2914203A
Cited
US3092259A
Cited
US3374901A
Cited
FR1452819A
Cited
US3445015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |