US2984374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoisting and dumping mechanism for containers
Assignee: Dempster Brothers Inc
•
Filing: 1958-12-22
•
Granted: 1961-05-16
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 William A Herpich
- 👤 Neil F Wender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:02
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/02; B65F3/04; B60; B60P; B60P1/00; B60P1/48; B60P1/50; B65F3/24; B65F3/28; B65F2003/0263; B65F2003/0279
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2824658A
Cited
US2824655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |