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Patent US2743552A successfully refreshed from Google Patents.
US2743552A
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Automatic irrigation devices
Assignee: Individual
•
Filing: 1952-11-22
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Granted: 1956-05-01
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Expires: 1972-11-22
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:15
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/08; B05B12/12; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/1441; F16K2200/00; F16K2200/40; F16K2200/401; Y; Y10; Y10S; Y10S239/00; Y10S239/15; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7837; Y10T137/7847; Y10T137/7848; Y10T137/8158; Y10T137/8359; Y10T137/8593; Y10T137/87917; Y10T137/88046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |