Patent US2450693A successfully refreshed from Google Patents.
Patent US4689640A successfully refreshed from Google Patents.
US4689640A
Expired / Lapsed
US
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Recording implement and ink jet recording device equipped with the same
Assignee: Canon Inc
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Filing: 1986-09-04
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Granted: 1987-08-25
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Expires: 2006-09-04
Abstract
Abstract A recording implement comprises at least an ink storing member and an ink feeding member, wherein a part or all of the site of said recording implement which is in contact with ink is formed of a polyolefin as the main component obtained by addition of an inorganic metal salt as the neutralizing agent for the catalyst during polymerization.
Inventors
- 👤 Akihiko Shimomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:50
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/175; Y; Y10; Y10S; Y10S138/00; Y10S138/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
59 words
A recording implement comprising at least an ink storing member and an ink feeding member, wherein a part or all of the site of said recording implement which is in contact with ink is formed of a polyolefin as the main component obtained by addition of an inorganic metal salt as the neutralizing agent for the catalyst during polymerization.
Claim 2
Dependent Claim
59 words
A recording implement comprising at least an ink storing member and an ink feeding member, wherein a part or all of the site of said recording implement which is in contact with ink is formed of a polyolefin as the main component obtained by addition of an inorganic metal salt as the neutralizing agent for the catalyst during polymerization.
Claim 3
Dependent Claim
14 words
A recording implement according to claim 1, wherein said polyolefin is polypropylene or polyethylene.
Claim 4
Dependent Claim
34 words
A recording implement according to claim 1, wherein the inorganic acid radical of said inorganic metal salt is selected from silicic acid anhydride, prussic acid, boric acid, phosphorous acid, carbonic acid and thiosulfuric acid.
Claim 5
Dependent Claim
66 words
An ink jet recording device equipped with a recording implement comprising at least an ink storing member and an ink feeding member, wherein a part or all of the site of said recording implement which is in contact with ink is formed of a polyolefin as the main component obtained by addition of an inorganic metal salt as the neutralizing agent for the catalyst during polymerization.
Claim 6
Dependent Claim
66 words
An ink jet recording device equipped with a recording implement comprising at least an ink storing member and an ink feeding member, wherein a part or all of the site of said recording implement which is in contact with ink is formed of a polyolefin as the main component obtained by addition of an inorganic metal salt as the neutralizing agent for the catalyst during polymerization.
Claim 7
Dependent Claim
16 words
An ink jet recording device according to claim 4, wherein said polyolefin is polypropylene or polyethylene.
References Cited (Backward Citations)
US4383263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-24 | 1991-02-23 | 1991-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-24 | 1995-02-23 | 1995-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-24 | 1999-02-23 | 1999-08-25 | $7700.00 | Window Closed / Lapsed |