Patent US3557490A successfully refreshed from Google Patents.
US3557490A
Expired / Lapsed
US
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Pots for horticultural plants
Assignee: Individual
•
Filing: 1969-01-23
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Granted: 1971-01-26
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Expires: 1989-01-23
Abstract
Abstract A HORICULTURAL PLANT POT COMPRISING AN INNER COMPARTMENT FOR THE PLANT AND SOIL, AND A SEPARATE OUTER COMPARTMENT FOR LIQUID, WITH AN ORIFICE IN A WALL COMMON TO THE COMPARTMENTS TO ALLOW FLOWS OF LIQUID AND AIR BETWEEN THE COMPARTMENTS, AND WITH MEANS FOR RESTRICTING THE FLOW OF LIQUID TO THE INNER COMPARTMENT, IS PROVIDED WITH A CAPILLARY ELEMENT WITHIN THE INNER COMPARTMENT TO INTERCEPT THE DIRECT FLOW OF LIQUID FROM THE ORIFICE TO THE SOIL.
Inventors
- 👤 Eric Denys Delaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:21
CPC Classifications
A; A01; A01G; A01G27/00; A01G27/04; A01G27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |