US2747725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Belt type conveyor
Assignee: Union Steel Products Co
•
Filing: 1951-04-10
•
Granted: 1956-05-29
•
Expires: 1971-04-10
Abstract
No abstract record available.
Inventors
- 👤 Charles T Hatch
- 👤 Raymond H Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/08; B65G17/083; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1082908A
Cited
US1556562A
Cited
US1851380A
Cited
US1985535A
Cited
US2246086A
Cited
US2459598A
Cited
US2675283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |