Patent US3294150A successfully refreshed from Google Patents.
US3294150A
Expired / Lapsed
US
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Sunblinds for greenhouses or the like
Assignee: Individual
•
Filing: 1963-12-20
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Granted: 1966-12-27
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:45
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/40; A; A01; A01G; A01G9/00; A01G9/22; A01G9/222; G; G05; G05D; G05D27/00; G05D27/02; Y; Y02; Y02A; Y02A30/00; Y02A30/24; Y02A40/00; Y02A40/10; Y02A40/25; Y02B; Y02B80/00; Y02P; Y02P60/00; Y02P60/14; Y10; Y10S; Y10S160/00; Y10S160/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A GREENHOUSE HAVING A SUNBLIND ADJUSTABLE BETWEEN OPEN AND CLOSED POSITIONS RESPECTIVELY PERMITTING AND LIMITING ENTRY OF SUNLIGHT THROUGH A LIGHT TRANSMITTING WALL PORTION INTO THE GREENHOUSE, ADJUSTING MEANS OPERABLE TO ADJUST THE SUNBLIND FROM ONE POSITION TO THE OTHER, AND CONTROL MEANS FOR THE ADUSTING MEANS INCLUDING A PAIR OF MEANS SENSITIVE TO TWO DIFFERENT CONDITIONS INFLUENCING TEMPERATURE WITHIN THE GREENHOUS, SAID PAIR OF MEANS COMPRISING AN ELEMENT SENSITIVE TO THE TEMPERATURE IN THE GREENHOUSE AND AN ELEMENT SENSITIVE TO LIGHT INTENSITY IN THE GREENHOUSE WHEREBY SAID CONTROL MEANS CLOSES TO SUNBLIND WHEN THE TEMPERATURE AND LIGHT INTENSITY EACH SUCCEEDS A PREDETERMINED LEVEL, AND OPENS THE SUNBLIND WHEN EITHER THE SENSITIVE TEMPERATURE OR LIGHT INTENSITY FALLS BELOW A PREDETERMINED LEVEL.
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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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |