US3286723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigation system
Assignee: J B KNIGHT CO Inc
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Filing: 1964-07-29
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Granted: 1966-11-22
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Expires: 1984-07-29
Abstract
No abstract record available.
Inventors
- 👤 Rufus J Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:37
CPC Classifications
A; A01; A01G; A01G25/00; A01G25/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN AN AGRICULTURAL IRRIGATION SYSTEM HAVING (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE, (B) A PLURALITY OF RISERS ON THE PIPE ADAPTED TO CARRY SPRINKLERS FOR SPRINKLING WATER ONTO LAND TO BE WATERED, AND (C) A PLURALITY OF VEHICLES ATTACHED TO THE PIPE MOVABLY SUPPORTING THE PIPE ABOVE THE GROUND, THE IMPROVEMENT COMPRISING: (D) A MOVABLE SUPPORT BETWEEN ADJACENT VEHICLES INCLUDING, (1) A LEG PIVOTALLY CONNECTED TO THE PIPE ABOUT AN AXIS PARALLEL TO THE PIPE, AND (11) A FOOT ON THE BOTTOM OF THE LEG ADAPTED TO BEAR AGAINST THE EARTH AND SUPPORT THE PIPE WHEN THE SYSYTEM IS NOT BEING MOVED; (E) A TRAIL TUBE PIVOTED TO EACH MOVABLE SUPPORT NEAR THE BOTTOM THEREOF;
Claim 2
Dependent Claim
119 words
IN AN AGRICULTURAL IRRIGATION SYSTEM HAVING (A) AN ELONGATED PIPE ADAPTED TO CARRY WATER UNDER PRESSURE, (B) A PLURALITY OF RISERS ON THE PIPE ADAPTED TO CARRY SPRINKLERS FOR SPRINKLING WATER ONTO LAND TO BE WATERED, AND (C) A PLURALITY OF VEHICLES ATTACHED TO THE PIPE MOVABLY SUPPORTING THE PIPE ABOVE THE GROUND, THE IMPROVEMENT COMPRISING: (D) A MOVABLE SUPPORT BETWEEN ADJACENT VEHICLES INCLUDING, (1) A LEG PIVOTALLY CONNECTED TO THE PIPE ABOUT AN AXIS PARALLEL TO THE PIPE, AND (11) A FOOT ON THE BOTTOM OF THE LEG ADAPTED TO BEAR AGAINST THE EARTH AND SUPPORT THE PIPE WHEN THE SYSYTEM IS NOT BEING MOVED; (E) A TRAIL TUBE PIVOTED TO EACH MOVABLE SUPPORT NEAR THE BOTTOM THEREOF;
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |