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Patent US2639551A successfully refreshed from Google Patents.
US2639551A
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US
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Greenhouse with means for controlling light and heat
Assignee: Individual
•
Filing: 1949-06-01
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Granted: 1953-05-26
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Expires: 1969-06-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
A; A01; A01G; A01G9/00; A01G9/22; A01G9/227; 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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Cited
US1648257A
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FR371926A
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CH48930A
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CH59072A
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US1703388A
Cited
US1789513A
Cited
GB386280A
Cited
US2031157A
Cited
US2046601A
Cited
US2069292A
Cited
US2193921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |