US2800233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking devices for transporting equipment
Assignee: Dempster Brothers Inc
•
Filing: 1953-09-03
•
Granted: 1957-07-23
•
Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Harry W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:57
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1477723A
Cited
US1883538A
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US2132612A
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US2426498A
Cited
US2482708A
Cited
US2424429A
Cited
US2538531A
Cited
US2606675A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |