US3221996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irrigating device
Assignee: Individual
•
Filing: 1963-10-08
•
Granted: 1965-12-07
•
Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 George W Emmert
- 👤 Dorothy G Emmert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:40
CPC Classifications
A; A01; A01G; A01G25/00; B; B05; B05B; B05B1/00; B05B1/14; B05B1/1421; B05B1/1422; B05B1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AN IRRIGATING DEVICE COMPRISING: A CYLINDRICAL SHELL INCLUDING A PLURALITY OF LONGITUDINALLY EXTENDING CIRCUMFERENTIAL OPENINGS THEREIN TO PERMIT LIQUID TO PASS THERETHROUGH; MEANS FORMING A UNITARY STRUCTURE WITH SAID SHELL DEFINING A FIRST CLOSURE FOR ONE END THEREOF, SAID CIRCUMFERENTIAL OPENINGS EXTENDING THROUGH SAID FIRST CLOSURE; MEANS FORMING A UNITARY STRUCTURE WITH SAID SHELL DEFINING A SECOND CLOSURE FOR THE OPPOSITE END THEREOF AND INCLUDUNG AN AXIAL OPENING TO ADMIT LIQUID; A FIRST CYLINDER EXTENDING INWARDLY OF SAID SHELL FROM SAID SECOND CLOSURE AND COMMUNICATING WITH SAID AXIAL OPENING; A SECOND AND THIRD CYLINDER, EACH OF LARGER DIAMETER THAN SAID FIRST CYLINDER, EXTENDING INWARDLY OF SAID SHELL FROM SAID FIRST CLOSSURE AND EXTENDING OVER A PORTION OF SAID FIRST CYLINDER; A FOURTH CYLINDER HAVING A DIAMETER INTERMEDIATE SAID SECOND AND THIRD CYLINDERS EXTENDING FROM SAID SECOND CLOSURE BETWEEN SAID SECOND AND THIRD CYLINDERS TO PROVIDE COUNTER-FLOWING PATHS FOR LIQUID ENTERING SAID AXIAL OPENING AND LEAVING THROUGH SAID CIRCUMFERENTIAL OPENINGS.
Claim 2
Dependent Claim
159 words
AN IRRIGATING DEVICE COMPRISING: A CYLINDRICAL SHELL INCLUDING A PLURALITY OF LONGITUDINALLY EXTENDING CIRCUMFERENTIAL OPENINGS THEREIN TO PERMIT LIQUID TO PASS THERETHROUGH; MEANS FORMING A UNITARY STRUCTURE WITH SAID SHELL DEFINING A FIRST CLOSURE FOR ONE END THEREOF, SAID CIRCUMFERENTIAL OPENINGS EXTENDING THROUGH SAID FIRST CLOSURE; MEANS FORMING A UNITARY STRUCTURE WITH SAID SHELL DEFINING A SECOND CLOSURE FOR THE OPPOSITE END THEREOF AND INCLUDUNG AN AXIAL OPENING TO ADMIT LIQUID; A FIRST CYLINDER EXTENDING INWARDLY OF SAID SHELL FROM SAID SECOND CLOSURE AND COMMUNICATING WITH SAID AXIAL OPENING; A SECOND AND THIRD CYLINDER, EACH OF LARGER DIAMETER THAN SAID FIRST CYLINDER, EXTENDING INWARDLY OF SAID SHELL FROM SAID FIRST CLOSSURE AND EXTENDING OVER A PORTION OF SAID FIRST CYLINDER; A FOURTH CYLINDER HAVING A DIAMETER INTERMEDIATE SAID SECOND AND THIRD CYLINDERS EXTENDING FROM SAID SECOND CLOSURE BETWEEN SAID SECOND AND THIRD CYLINDERS TO PROVIDE COUNTER-FLOWING PATHS FOR LIQUID ENTERING SAID AXIAL OPENING AND LEAVING THROUGH SAID CIRCUMFERENTIAL OPENINGS.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |