US2640581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic station-to-station delivery conveyer means
Assignee: Individual
•
Filing: 1949-02-07
•
Granted: 1953-06-02
•
Expires: 1969-02-07
Abstract
No abstract record available.
Inventors
- 👤 Melvin E Abitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:06
CPC Classifications
A; A47; A47F; A47F10/00; A47F10/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636557A
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US695400A
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US1031186A
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US1439825A
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US1781424A
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US1804154A
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US1820564A
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US1825951A
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US1865596A
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US1881898A
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US1965454A
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US2280221A
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US2353638A
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US2516985A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |