US2851140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer roll shell assembly and method of making it
Assignee: Jeffrey Manufacturing Co
•
Filing: 1954-03-15
•
Granted: 1958-09-09
•
Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Aruie J Kindig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:59
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B21; B21D; B21D53/00; B21D53/26; B21D53/30
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |