Patent US4499572A successfully refreshed from Google Patents.
Patent US2569194A successfully refreshed from Google Patents.
US2569194A
Expired / Lapsed
US
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Apparatus for plant cultivation
Assignee: International Motors LLC
•
Filing: 1948-12-23
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Granted: 1951-09-25
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Expires: 1968-12-23
Abstract
No abstract record available.
Inventors
- 👤 Stuart D Pool
- 👤 Bernise J Shager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:52
CPC Classifications
A; A01; A01M; A01M15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1460630A
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US2327204A
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US2297301A
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US2365465A
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US2369154A
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US2391027A
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US2409792A
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US2487353A
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US2494720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |