US2776169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravitational irrigation attachment
Assignee: Individual
•
Filing: 1955-03-09
•
Granted: 1957-01-01
•
Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 Aschenbrenner Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/06; Y; Y10; Y10T; Y10T137/00; Y10T137/402
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |