US2428774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary casing feed section for conveyers
Assignee: Link Belt Co
•
Filing: 1945-04-23
•
Granted: 1947-10-14
•
Expires: 1965-04-23
Abstract
No abstract record available.
Inventors
- 👤 Richard F Bergmann
- 👤 Axel K Sjolander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:55
CPC Classifications
B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0314; B65G2814/0319; B65G2814/032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2339491A
Cited
US2373765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |