Patent US1872000A successfully refreshed from Google Patents.
US1872000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer system
Assignee: Lamson Co
•
Filing: 1930-06-20
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Granted: 1932-08-16
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Expires: 1950-06-20
Abstract
No abstract record available.
Inventors
- 👤 Henry C Keller
- 👤 Maynard Van Billiard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:31
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/02; B65G47/04; B65G47/06; B65G47/08; B65G47/082
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) | 1935-08-16 | 1936-02-15 | 1936-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-16 | 1940-02-15 | 1940-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-16 | 1944-02-15 | 1944-08-16 | $7700.00 | Window Closed / Lapsed |