US2435418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley locking device
Assignee: CHESTER Manufacturing Co
•
Filing: 1945-03-05
•
Granted: 1948-02-03
•
Expires: 1965-03-05
Abstract
No abstract record available.
Inventors
- 👤 Hal F Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:48
CPC Classifications
B; B65; B65G; B65G9/00; B65G9/006; B65G9/002; B66; B66C; B66C11/00; B66C11/02; B66C11/04; B66C11/06; B66C9/00; B66C9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US878484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |