Patent US2275218A successfully refreshed from Google Patents.
US4095618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rodent deterrent irrigation tube
Assignee: Individual
•
Filing: 1976-10-04
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Granted: 1978-06-20
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Expires: 1996-10-04
Abstract
Abstract An irrigation deterrent tube, particularly adapted for drip or trickle irrigation, the tube having, normally, a flat configuration when free of internal pressure, and expansible to an essentially cylindrical configuration, when pressurized, the tube having laterally projecting webs which tend to be the first to be bitten by a rodent while exploring the presence of the irrigation tube; the lateral margins of the webs may be enlarged to contain a concentration of a deterrent or toxic material. In one embodiment, the tube and webs form a single extrusion, in other embodiments, the tube and webs may be separately extruded and subsequently joined together.
Inventors
- 👤 Lloyd Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:26
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/12; F16L11/121; A; A01; A01G; A01G25/00; A01G25/02; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A rodent deterrent irrigation tube, comprising: a. an essentially flat tube member arranged, when subjected to increasing water pressure to assume an increasingly cylindrical configuration; b. and webs extending laterally beyond diametrically opposite margins of the tube member and forming rodent barriers of sufficient width to prevent biting contact across the web into the tube member, the tube member and webs presenting essentially flat surfaces further deterring biting contact with the tube member; and c. a rodent deterrent is disposed within and confined to the remote margins of the webs.
Claim 2
Dependent Claim
90 words
A rodent deterrent irrigation tube, comprising: a. an essentially flat tube member arranged, when subjected to increasing water pressure to assume an increasingly cylindrical configuration; b. and webs extending laterally beyond diametrically opposite margins of the tube member and forming rodent barriers of sufficient width to prevent biting contact across the web into the tube member, the tube member and webs presenting essentially flat surfaces further deterring biting contact with the tube member; and c. a rodent deterrent is disposed within and confined to the remote margins of the webs.
Claim 3
Dependent Claim
17 words
An irrigation tube as defined in claim 1, wherein: a. the tube member and webs are integral.
Claim 4
Dependent Claim
29 words
An irrigation tube as defined in claim 1, wherein: a. the lateral margins of the tube have integral laterally extending bonding strips; b. and the webs are bonded thereto.
Claim 5
Dependent Claim
26 words
An irrigation tube as defined in claim 1, wherein: a. the rodent deterrent is impregnated in fiberous material encased in the remote margins of the webs.
Claim 6
Dependent Claim
26 words
An irrigation tube as defined in claim 1, wherein: a. the remote margins of the webs are enlarged and receive a rodent deterrent impregnated fiberous material.
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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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |