US3457971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log handling machine
Assignee: Northern Eng & Supply Co Ltd
•
Filing: 1967-04-03
•
Granted: 1969-07-29
•
Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 Edward D Maradyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:55
CPC Classifications
B; B27; B27B; B27B31/00; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2033; Y10T83/2037; Y10T83/647; Y10T83/6476; Y10T83/6478; Y10T83/648
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1759835A
Cited
US1774047A
Cited
US2039017A
Cited
US2410887A
Cited
US2889858A
Cited
US2938552A
Cited
US2960123A
Cited
US3236274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |