US2575598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer idler
Assignee: Individual
•
Filing: 1948-04-30
•
Granted: 1951-11-20
•
Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Shank Harvey Tillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/07; B65G39/071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US857772A
Cited
US857610A
Cited
GB418677A
Cited
US1980777A
Cited
DE672218C
Cited
US2393471A
Cited
US2391178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |