Patent EP0407579A1 successfully refreshed from Google Patents.
Patent US4643549A successfully refreshed from Google Patents.
US4643549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data imprinting device for a camera
Assignee: Canon Inc
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Filing: 1985-02-25
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Granted: 1987-02-17
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Expires: 2005-02-25
Abstract
Abstract A data imprinting device having an input lock switch responsive to external pressure for rendering unable the input of imprinting data by an input switch, wherein the input switch and the input lock switch controls the operation of a lamp for illuminating the imprinting data in such a way that the illumination differs between when the input is unable and when the data has been input.
Inventors
- 👤 Toru Nagata
- 👤 Chikara Aoshima
- 👤 Hiroshi Maeno
- 👤 Hideo Tamamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:54
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
67 words
A data imprinting device for a camera usable for underwater photography comprising: (a) data imprinting means; (b) actuating means for setting data of said data imprinting means; (c) display means for displaying the data of said data imprinting means; (d) illuminating means for illuminating said display means; and (e) detection means for detecting that the camera is under water and actuating the illumination means to automatically operate.
Claim 2
Dependent Claim
67 words
A data imprinting device for a camera usable for underwater photography comprising: (a) data imprinting means; (b) actuating means for setting data of said data imprinting means; (c) display means for displaying the data of said data imprinting means; (d) illuminating means for illuminating said display means; and (e) detection means for detecting that the camera is under water and actuating the illumination means to automatically operate.
Claim 3
Dependent Claim
15 words
A device according to claim 1, wherein said detection means includes a water pressure detector.
Claim 4
Dependent Claim
109 words
A data imprinting device for a camera usable for underwater photography comprising: (a) data imprinting means; (b) actuating means for setting data of said data imprinting means; (c) detecting means for detecting that the camera is under water; (d) display means for displaying the data of said data imprinting means; (e) illuminating means for illuminating said display means; and (f) control means for controlling the illumination means to illuminate differently between when the camera is detected to be under water by the detection means and the actuating means operates, and when the camera is detected to be underwater by the detection means but the actuating means does not operate.
Claim 5
Dependent Claim
109 words
A data imprinting device for a camera usable for underwater photography comprising: (a) data imprinting means; (b) actuating means for setting data of said data imprinting means; (c) detecting means for detecting that the camera is under water; (d) display means for displaying the data of said data imprinting means; (e) illuminating means for illuminating said display means; and (f) control means for controlling the illumination means to illuminate differently between when the camera is detected to be under water by the detection means and the actuating means operates, and when the camera is detected to be underwater by the detection means but the actuating means does not operate.
Claim 6
Dependent Claim
15 words
A device according to claim 3, wherein the detection means includes a water pressure detector.
Claim 7
Dependent Claim
21 words
A device according to claim 3, wherein said control means includes a frequency divider by which the illuminating state is differentiated.
Claim 8
Dependent Claim
58 words
A device according to claim 3, wherein the control means includes intensification means for intensifying the illumination of the illuminating means more strongly when the camera is detected to be under water by the detection means and the actuating means operates than when the camera is detected to be under water but the actuating means does not operate.
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) | 1990-02-16 | 1990-08-18 | 1991-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-16 | 1994-08-18 | 1995-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-16 | 1998-08-18 | 1999-02-17 | $7700.00 | Window Closed / Lapsed |