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US2642981A
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Extensible conveyer with take-up means
Assignee: Goodman Manufacturing Co LP
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Filing: 1951-07-13
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Granted: 1953-06-23
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Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Frank A Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:41
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/10; E21C27/12; E21C27/126; E21F; E21F13/00; E21F13/06; E21F13/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321531A
Cited
US1920500A
Cited
US2205013A
Cited
US2507341A
Cited
US2589827A
Cited
GB591798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |