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Patent US2658308A successfully refreshed from Google Patents.
US2658308A
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Crop heating device for preventing frost damage
Assignee: FOWLER JR
•
Filing: 1949-03-08
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Granted: 1953-11-10
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Expires: 1969-03-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William R Fowler
- 👤 Bobby R Mcgill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:45
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/047; A; A01; A01G; A01G13/00; A01G13/06; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1357314A
Cited
US1461247A
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US1793719A
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US2154002A
Cited
US2153900A
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US2477584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |