US4237541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic apparatus for indicating that a printer has been disabled
Assignee: Canon Inc
•
Filing: 1978-09-25
•
Granted: 1980-12-02
•
Expires: 1998-09-25
Abstract
Abstract An electronic instrument having display means and printing means is provided with informing means for informing the operator as to whether the display means or the printing means has been used. Thus, the electronic instrument becomes easier to use and suffers less from malfunctioning.
Inventors
- 👤 Hiroyuki Mikada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:26
CPC Classifications
G; G06; G06F; G06F15/00; G06F15/02; G06F15/0225; G06F15/0233
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
In an electronic apparatus having a display, a combination comprising: printing means; control means connected to said print means for enabling and disabling the operation of said printing means; and means connected to said control means for providing an indication that said printing means was disabled when said printing means is enabled after having been disabled by said control means.
Claim 2
Dependent Claim
60 words
In an electronic apparatus having a display, a combination comprising: printing means; control means connected to said print means for enabling and disabling the operation of said printing means; and means connected to said control means for providing an indication that said printing means was disabled when said printing means is enabled after having been disabled by said control means.
Claim 3
Dependent Claim
18 words
An electronic apparatus having a display according to claim 1, wherein said control means includes a manual switch.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 1, wherein said indicating means is connected to said printing means and includes means for causing said printing means to print on a recording sheet a pattern representing that said printing means was previously disabled.
References Cited (Backward Citations)
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Cited
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Cited
US3971925A
Cited
US3976975A
Cited
US4003030A
Cited
US4095738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-02 | 1984-06-02 | 1984-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-02 | 1988-06-02 | 1988-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-02 | 1992-06-02 | 1992-12-02 | $7700.00 | Window Closed / Lapsed |