Patent US2899866A successfully refreshed from Google Patents.
US3009291A
Expired / Lapsed
US
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Planter
Assignee: Plastiform Co
•
Filing: 1958-04-23
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Granted: 1961-11-21
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Expires: 1978-04-23
Abstract
No abstract record available.
Inventors
- 👤 Fred N Blackmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:51
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/02; A01G9/029; A01G9/0295; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2092756A
Cited
US1983806A
Cited
US2022548A
Cited
US2046236A
Cited
US2455295A
Cited
US2689379A
Cited
US2640623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |