US3284948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous hydroponic system
Assignee: Hydroponics Inc
•
Filing: 1964-08-24
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Granted: 1966-11-15
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Leslie B Kyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:04
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; A01G31/04; A01G31/042; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A TIERED HYDROPONIC SYSTEM WHICH COMPRISES: (A) A PLURALITY OF FLEXIBLE GRAIN-SUPPORTING BELTS SUPPORTED FOR MOVEMENT OVER ELONGATED PATHS ONE ABOVE THE OTHER, (B) A GRAIN HOPPER AT ONE SIDE AND AT ONE END OF SAID BELTS, (C) A PLURALITY OF FEED SCREWS COMMUNICATING WITH SAID HOPPER AND EACH EXTENDING LATERALLY FROM SAID HOPPER ABOVE ONE OF SAID BELTS, EACH SAID FEED SCREW HAVING A METERING SLOT THEREIN EXTENDING THE WIDTH OF THE ADJACENT BELT WITH THE LIPS OF SAID SLOT A PREDETERMINED DISTANCE FROM THE BELT SURFACE AND HAVING A MOUTH DIRECTED DOWNWARD TOWARD SAID BELT, AND (D) MEANS TO ENERGIZE EACH SAID SCREW WHEN AN ADJACENT BELT IS MOVED ALONG ITS PATH.
References Cited (Backward Citations)
US2971290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |