US2436770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Garden and apparatus for separating the soils and plants therein
Assignee: ELSPETH HILL COWGILL
•
Filing: 1943-09-04
•
Granted: 1948-02-24
•
Expires: 1963-09-04
Abstract
No abstract record available.
Inventors
- 👤 Hill Irving
- 👤 Nelson Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:59
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US645518A
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US861046A
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US1197106A
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US1765796A
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FR696268A
Cited
US2104060A
Cited
US1977021A
Cited
US2073695A
Cited
US2184904A
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US2232005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-23 | 1951-08-25 | 1952-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-23 | 1955-08-25 | 1956-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-23 | 1959-08-25 | 1960-02-24 | $7700.00 | Window Closed / Lapsed |