US3053011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and apparatus for hydroponic growing
Assignee: Individual
•
Filing: 1960-03-01
•
Granted: 1962-09-11
•
Expires: 1980-03-01
Abstract
No abstract record available.
Inventors
- 👤 Benjamin B Silverman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:03
CPC Classifications
A; A01; A01G; A01G31/00; A01G31/02; A01G31/06; A01G31/065; Y; Y02; Y02P; Y02P60/00; Y02P60/20; Y02P60/21
Claims Analysis
Total Claims: 0
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US2909002A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |