Patent US1979966A successfully refreshed from Google Patents.
Patent EP0507187A1 successfully refreshed from Google Patents.
Patent US2734400A successfully refreshed from Google Patents.
Patent US2959273A successfully refreshed from Google Patents.
US2959273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller slat conveyor control device
Assignee: Toronto Star Ltd
•
Filing: 1955-08-08
•
Granted: 1960-11-08
•
Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Sykes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/24; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB280674A
Cited
US2130323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |