US3456815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side-swinging article stacker
Assignee: Weyerhaeuser Co
•
Filing: 1967-03-13
•
Granted: 1969-07-22
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Howard J Carrels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:06
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US626956A
Cited
US1563071A
Cited
US1951178A
Cited
US2562247A
Cited
US2822932A
Cited
US3090503A
Cited
US3338427A
Cited
US3361272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |