US2812976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic irrigation control means
Assignee: Individual
•
Filing: 1954-11-12
•
Granted: 1957-11-12
•
Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 John F Hasenkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:17
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/16; A01G25/167; G; G05; G05D; G05D22/00; G05D22/02; Y; Y10; Y10T; Y10T137/00; Y10T137/1842; Y10T137/1866; Y10T137/189
Claims Analysis
Total Claims: 0
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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) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |