Patent US1743728A successfully refreshed from Google Patents.
US1743728A
Expired / Lapsed
US
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Conveyer chain
Assignee: Individual
•
Filing: 1928-10-25
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Granted: 1930-01-14
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Expires: 1948-10-25
Abstract
No abstract record available.
Inventors
- 👤 Redmond H Pangborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:35
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/32; B65G17/34; B65G17/345; B65G2201/00; B65G2201/02; B65G2207/00; B65G2207/18
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) | 1933-01-13 | 1933-07-15 | 1934-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-01-13 | 1937-07-15 | 1938-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-01-13 | 1941-07-15 | 1942-01-14 | $7700.00 | Window Closed / Lapsed |