Patent US3067541A successfully refreshed from Google Patents.
US3067541A
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US
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Agricultural method and apparatus for heating, treating, and circulating air
Assignee: American Liquid Gas Corp
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Filing: 1960-10-10
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Granted: 1962-12-11
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Harold W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:59
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09; A01G13/00; A01G13/06; A01G13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB201574A
Cited
AU1430923A
Cited
US1993635A
Cited
US2232728A
Cited
US2335281A
Cited
US2653655A
Cited
US2895259A
Cited
US2954932A
Cited
US2964247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |