Patent US2031618A successfully refreshed from Google Patents.
US2031618A
Expired / Lapsed
US
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Bearing and carrier
Assignee: ROBINS CONVEYING BELT CO
•
Filing: 1934-05-02
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Granted: 1936-02-25
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Expires: 1954-05-02
Abstract
No abstract record available.
Inventors
- 👤 Robins Samuel Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:56
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; F16C13/06; F16C23/00; F16C23/06; F16C23/08; F16C23/082; F16C23/084; F16C2326/00; F16C2326/58; Y; Y10; Y10S; Y10S277/00; Y10S277/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-02-24 | 1939-08-26 | 1940-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-24 | 1943-08-26 | 1944-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-24 | 1947-08-26 | 1948-02-25 | $7700.00 | Window Closed / Lapsed |