US3055229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self clearing conveyor belt pulley
Assignee: SIERRA ENGINEERING Co Inc
•
Filing: 1959-05-25
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Granted: 1962-09-25
•
Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Ferris J Mecham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:35
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/07; B65G39/073; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453; Y10T29/49455; Y10T29/49456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194589A
Cited
US1196922A
Cited
US2157301A
Cited
US2232623A
Cited
US2320163A
Cited
US2339069A
Cited
US2808730A
Cited
US2913150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |