US4758689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card-type thin electronic device
Assignee: Sharp Corp
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Filing: 1986-08-06
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Granted: 1988-07-19
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Expires: 2006-08-06
Abstract
Abstract A card-type thin electronic device in which the upper and lower panels are bonded to flanges projecting from a side-wall forming frame between the two panels, while a number of grooves are formed by a half-etching process on the surfaces of both panels bonded against the side-wall forming frame.
Inventors
- 👤 Kazuhiro Nakao
- 👤 Yoshinori Oogita
- 👤 Shigeki Komaki
- 👤 Kazuhito Ozawa
- 👤 Katsuhide Shino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:34
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07745
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A card-type thin electronic device comprising: a frame having a center opening therein, flanges on said frame extending into said opening, an upper panel located in said opening above upper surfaces of said flanges, a lower panel located in said opening below lower surfaces on said flanges, bonding means between a lower surface of said upper panel and said upper surfaces of said flanges and between an upper surface of said lower panel and said lower surfaces of said flanges so that said panels are bonded to said flanges, said bonding means includes a sheet-like thermoplastic bonding agent covering said lower surface of said upper panel and a sheet-like thermoplastic bonding agent covering said upper surface of said lower panel, and grooves formed in the surfaces of said panels bonded by said bonding agent to said flanges located such that said bonding agent enters said grooves.
Claim 2
Dependent Claim
146 words
A card-type thin electronic device comprising: a frame having a center opening therein, flanges on said frame extending into said opening, an upper panel located in said opening above upper surfaces of said flanges, a lower panel located in said opening below lower surfaces on said flanges, bonding means between a lower surface of said upper panel and said upper surfaces of said flanges and between an upper surface of said lower panel and said lower surfaces of said flanges so that said panels are bonded to said flanges, said bonding means includes a sheet-like thermoplastic bonding agent covering said lower surface of said upper panel and a sheet-like thermoplastic bonding agent covering said upper surface of said lower panel, and grooves formed in the surfaces of said panels bonded by said bonding agent to said flanges located such that said bonding agent enters said grooves.
Claim 3
Dependent Claim
19 words
The card-type thin electronic device defined in claim 1 wherein said surfaces of said flanges have a coarse finish.
Claim 4
Dependent Claim
36 words
The card-type thin electronic device defined in claim 1 wherein a recess is located in said lower surface of said upper panel and a corresponding recess is located in said upper surface of said lower panel.
Claim 5
Dependent Claim
18 words
The card-type thin electronic device defined in claim 1 wherein an electronic part is positioned in said recesses.
Claim 6
Dependent Claim
15 words
The card-type thin electronic device defined in claim 1 wherein said grooves have coarse surfaces.
References Cited (Backward Citations)
US2713700A
Cited
US3591432A
Cited
US3906144A
Cited
US3971193A
Cited
US4043094A
Cited
US4159221A
Cited
US4092664A
Cited
US4252990A
Cited
US4483441A
Cited
US4564880A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-19 | 1992-01-18 | 1992-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-19 | 1996-01-18 | 1996-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-19 | 2000-01-18 | 2000-07-19 | $7700.00 | Window Closed / Lapsed |