Patent US4396270A successfully refreshed from Google Patents.
US4396270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera having a photographing lens protection member
Assignee: Canon Inc
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Filing: 1982-02-04
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Granted: 1983-08-02
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Expires: 2002-02-04
Abstract
Abstract A camera is provided with a protection member in front of the lens for opening or closing the photographing lens in order to protect the lens in such a manner that the shutter release is locked in case the protection member is not opened or the film has not been wound.
Inventors
- 👤 Toyotosi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:26
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/38; G03B17/42
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
79 words
A camera comprising: a photographing lens and a shutter release member; a photographing lens protection member provided in front of said lens so as to open or close the lens in order to protect said photographing lens; lock means for locking said shutter release member until film in said camera has been wound up; and lock release prevention means for preventing the lock release of said lock means when said lens protection member is not in the opened state.
Claim 2
Dependent Claim
79 words
A camera comprising: a photographing lens and a shutter release member; a photographing lens protection member provided in front of said lens so as to open or close the lens in order to protect said photographing lens; lock means for locking said shutter release member until film in said camera has been wound up; and lock release prevention means for preventing the lock release of said lock means when said lens protection member is not in the opened state.
Claim 3
Dependent Claim
33 words
A camera in accordance with claim 1, wherein said lock means comprise a lock member for preventing depression of said shutter release member and a lock release member for releasing the lock member.
Claim 4
Dependent Claim
37 words
A camera in accordance with claim 1, wherein said lock release prevention means comprise an actuating member for opening or closing the lens protection member and a lock release prevention member operatively engaged with the actuating member.
Claim 5
Dependent Claim
32 words
A camera in accordance with claim 1, wherein said lens protection member is operative to assume a totally opened or totally closed position, being unable to stop at an intermediate position therebetween.
Claim 6
Dependent Claim
41 words
A camera in accordance with claim 3, wherein said actuating member is not capable of stopping at any position other than one determined in such a manner that the lens protection member assumes the totally opened or the totally closed state.
Claim 7
Dependent Claim
35 words
A camera in accordance with claim 5, wherein said actuating member is rendered not capable of stopping at any position other than said determined position, by means of an urging member and a click mechanism.
Claim 8
Dependent Claim
77 words
A camera comprising: a photographing lens; a shutter release member; a lock member for preventing the depression of the shutter release member; a lock release member for releasing the lock member; a photographing lens protection member provided in front of the lens for opening and closing the lens in order to protect the lens; an actuating member for opening or closing the lens protection member; and a lock release prevention member operatively engaged with the actuating member.
Claim 9
Dependent Claim
77 words
A camera comprising: a photographing lens; a shutter release member; a lock member for preventing the depression of the shutter release member; a lock release member for releasing the lock member; a photographing lens protection member provided in front of the lens for opening and closing the lens in order to protect the lens; an actuating member for opening or closing the lens protection member; and a lock release prevention member operatively engaged with the actuating member.
Claim 10
Dependent Claim
37 words
A camera in accordance with claim 7, wherein the actuating member includes an urging member and a click mechanism operating so as to bring the lens protection member into the totally opened or the totally closed state.
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) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |