Patent US2581678A successfully refreshed from Google Patents.
US2581678A
Expired / Lapsed
US
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Wheeled spraying device
Assignee: FMC Corp
•
Filing: 1947-04-26
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Granted: 1952-01-08
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Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Malin
- 👤 Allen C Stockdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/005; A01M7/0064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US545310A
Cited
US1617673A
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US1554875A
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US1668582A
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US1724702A
Cited
US2051182A
Cited
US2086055A
Cited
US2367594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |