US3481073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Daylight control means in greenhouses
Assignee: Sunnyside Nurseries Inc
•
Filing: 1967-06-20
•
Granted: 1969-12-02
•
Expires: 1987-06-20
Abstract
No abstract record available.
Inventors
- 👤 Eiichi Yoshida
- 👤 Saburo Yoshida
- 👤 Shiyoge Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:46
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/22; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US468536A
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DE565280C
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US2193921A
Cited
US2440557A
Cited
US3294150A
Cited
US3315727A
Cited
US3418752A
Cited
GB1113577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |