Patent US1963956A successfully refreshed from Google Patents.
US1963956A
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Ball transfer
Assignee: Mathews Conveyer Co
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Filing: 1931-03-20
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Granted: 1934-06-26
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Expires: 1951-03-20
Abstract
No abstract record available.
Inventors
- 👤 Craig James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:06
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/30; E02F3/303; F; F16; F16C; F16C29/00; F16C29/04; F16C29/045; F16C29/046; F16C2326/00; F16C2326/58; F16C2350/00; F16C2350/26
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) | 1937-06-25 | 1937-12-25 | 1938-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-06-25 | 1941-12-25 | 1942-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-06-25 | 1945-12-25 | 1946-06-26 | $7700.00 | Window Closed / Lapsed |