US917381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for the automatic control and distribution of water for irrigation.
Assignee: Individual
•
Filing: 1907-02-04
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Granted: 1909-04-06
•
Expires: 1927-02-04
Abstract
No abstract record available.
Inventors
- 👤 Nicholas S Twiford
- 👤 Grace A Twiford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:22
CPC Classifications
E; E02; E02B; E02B7/00; E02B7/20; E02B7/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1912-04-05 | 1912-10-05 | 1913-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-04-05 | 1916-10-05 | 1917-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-04-05 | 1920-10-05 | 1921-04-06 | $7700.00 | Window Closed / Lapsed |