US4428835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strainer
Assignee: Kioritz Corp
•
Filing: 1982-07-01
•
Granted: 1984-01-31
•
Expires: 2002-07-01
Abstract
Abstract A strainer for a liquid sucking device and adapted to be attached to the end of a flexible liquid sucking tube of the device. The strainer has an outlet tube adapted to be connected to the flexible liquid sucking tube of the device, a spherical shell integral with the outlet tube, a strainer element attached to the outer surface of the spherical shell and a weight accommodated by the internal cavity of the spherical shell.
Inventors
- 👤 Akira Nagashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:49
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/19; B01D29/62; B01D29/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A strainer comprising an outlet tube adapted to be connected to a flexible liquid sucking tube of a liquid sucking device; a perforated spherical shell integral with said outlet tube and having an internal cavity communicating with said liquid sucking tube; a strainer element attached to said spherical shell; and a ball-like weight disposed and supported by ribs in said cavity of said spherical shell.
Claim 2
Dependent Claim
65 words
A strainer comprising an outlet tube adapted to be connected to a flexible liquid sucking tube of a liquid sucking device; a perforated spherical shell integral with said outlet tube and having an internal cavity communicating with said liquid sucking tube; a strainer element attached to said spherical shell; and a ball-like weight disposed and supported by ribs in said cavity of said spherical shell.
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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |