Patent US2686990A successfully refreshed from Google Patents.
US2686990A
Expired / Lapsed
US
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Method of horticultural spraying or dusting
Assignee: FMC Corp
•
Filing: 1949-06-02
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Granted: 1954-08-24
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Expires: 1969-06-02
Abstract
No abstract record available.
Inventors
- 👤 Vinton H Matthews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:36
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0003; A01M7/0014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1980427A
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US1998856A
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US2327204A
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US2408328A
Cited
GB558502A
Cited
US2608441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |