US3084516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-setting irrigation ditch dam
Assignee: Individual
•
Filing: 1961-01-13
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Granted: 1963-04-09
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Expires: 1981-01-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Coffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:09
CPC Classifications
E; E02; E02B; E02B13/00; E02B13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN COMBINATION, AN IRRIGATION DITCH, A DAM HAVING A CURTAIN ASSEMBLY EXTENDING ACROSS THE DITCH AND HAVING ONE END RESTING UPON THE GROUND AT OPPOSITE SIDES OF THE DITCH, A STRETCHER ON AND CARRIED BY SAID ASSEMBLY, AND A TIMING ASSEMBLY COMPRISING A BRACKET MOUNTED ON THE BANK OF SAID DITCH AND EXTENDING INWARDLY OVER THE PORTION ADJACENT THE OTHER END OF SAID CURTAIN ASSEMBLY, A VERTICAL MEMBER SWINGABLY SUPPORTED INTERMEDIATE ITS ENDS ON SAID BRACKET FOR ROCKING MOVEMENT ABOUT A HORIZONTAL AXIS AND HAVING THE LOWER END RELEASABLY ENGAGED BENEATH SAID STRETCHER TO HOLD THE OTHER END PORTION OF SAID CURTAIN ASSEMBLY ABOVE SAID DITCH, AND CLOCK-OPERATED
Claim 2
Dependent Claim
108 words
IN COMBINATION, AN IRRIGATION DITCH, A DAM HAVING A CURTAIN ASSEMBLY EXTENDING ACROSS THE DITCH AND HAVING ONE END RESTING UPON THE GROUND AT OPPOSITE SIDES OF THE DITCH, A STRETCHER ON AND CARRIED BY SAID ASSEMBLY, AND A TIMING ASSEMBLY COMPRISING A BRACKET MOUNTED ON THE BANK OF SAID DITCH AND EXTENDING INWARDLY OVER THE PORTION ADJACENT THE OTHER END OF SAID CURTAIN ASSEMBLY, A VERTICAL MEMBER SWINGABLY SUPPORTED INTERMEDIATE ITS ENDS ON SAID BRACKET FOR ROCKING MOVEMENT ABOUT A HORIZONTAL AXIS AND HAVING THE LOWER END RELEASABLY ENGAGED BENEATH SAID STRETCHER TO HOLD THE OTHER END PORTION OF SAID CURTAIN ASSEMBLY ABOVE SAID DITCH, AND CLOCK-OPERATED
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |