Patent US2156878A successfully refreshed from Google Patents.
US2156878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer
Assignee: REDLER CONVEYOR CO
•
Filing: 1937-01-07
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Granted: 1939-05-02
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Expires: 1957-01-07
Abstract
No abstract record available.
Inventors
- 👤 Sinden Alfred De Los
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:48
CPC Classifications
B; B65; B65G; B65G19/00; B65G19/14; B65G19/16
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) | 1942-05-01 | 1942-10-31 | 1943-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-01 | 1946-10-31 | 1947-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-01 | 1950-10-31 | 1951-05-02 | $7700.00 | Window Closed / Lapsed |