Patent DE1216606B successfully refreshed from Google Patents.
US3323253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroponic unit
Assignee: Individual
•
Filing: 1965-10-21
•
Granted: 1967-06-06
•
Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Sy R Robins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:31
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A HYDROPONIC UNIT COMPRISING A GROWING CHAMBER HAVING A BOTTOM, SAID CHAMBER BEING ADAPTED TO CONTAIN AN AGGREGATE FOR SUPPORTING A CROP, A RESERVOIR FOR NUTRIENT SOLUTION POSITIONED BELOW SAID CHAMBER, SAID RESERVOIR BEING IN OPEN COMMUNICATION WITH THE ATMOSPHERE AT ALL TIMES, A DRAIN OPENING IN SAID BOTTOM, A CONDUIT CONNECTING SAID OPENING WITH SAID RESERVOIR FOR CONDUCTING THE NUTRIENT SOLUTION FROM SAID RESERVOIR INTO SAID CHAMBER AT THE BOTTOM THEREOF AND FOR DRAINING SAID NUTRIENT SOLUTION FROM SAID CHAMBER TO SAID RESERVOIR, A PUMP CONNECTED TO SAID CONDUIT FOR PUMPING SAID NUTRIENT SOLUTION FROM SAID RESERVOIR INTO SAID CHAMBER THROUGH SAID DRAIN OPENING AND FOR RETURNING SAID SOLUTION TO SAID RESERVOIR FROM SAID CHAMBER.
Claim 2
Dependent Claim
116 words
A HYDROPONIC UNIT COMPRISING A GROWING CHAMBER HAVING A BOTTOM, SAID CHAMBER BEING ADAPTED TO CONTAIN AN AGGREGATE FOR SUPPORTING A CROP, A RESERVOIR FOR NUTRIENT SOLUTION POSITIONED BELOW SAID CHAMBER, SAID RESERVOIR BEING IN OPEN COMMUNICATION WITH THE ATMOSPHERE AT ALL TIMES, A DRAIN OPENING IN SAID BOTTOM, A CONDUIT CONNECTING SAID OPENING WITH SAID RESERVOIR FOR CONDUCTING THE NUTRIENT SOLUTION FROM SAID RESERVOIR INTO SAID CHAMBER AT THE BOTTOM THEREOF AND FOR DRAINING SAID NUTRIENT SOLUTION FROM SAID CHAMBER TO SAID RESERVOIR, A PUMP CONNECTED TO SAID CONDUIT FOR PUMPING SAID NUTRIENT SOLUTION FROM SAID RESERVOIR INTO SAID CHAMBER THROUGH SAID DRAIN OPENING AND FOR RETURNING SAID SOLUTION TO SAID RESERVOIR FROM SAID CHAMBER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |