Patent US4420240A successfully refreshed from Google Patents.
US4420240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripartite camera with releasable coupling between each part
Assignee: Canon Inc
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Filing: 1982-03-05
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Granted: 1983-12-13
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Expires: 2002-03-05
Abstract
Abstract A camera constructed from at least three different units or parts arranged in combination, with the units being releasably attached to each other by respective individual coupling devices which are made with a basically similar construction and which are operated to lock the individual camera parts together and to unlock the connection therebetween upon release actuation of the coupling devices.
Inventors
- 👤 Makoto Katsuma
- 👤 Toyokazu Mizogui
- 👤 Takashi Isobe
- 👤 Akira Hiramatsu
- 👤 Hiroyasu Murakami
- 👤 Toyoki Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:53
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/12; G03B17/00; G03B17/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
153 words
A camera having at least three separable parts arranged in combination comprising: fitting means for fitting each of said parts to another part so as to have portions thereof overlap, said fitting means being arranged to fit each of said parts so that at least one side of each part is arranged to lie in a common plane with a side of another part; coupling means for coupling two successive parts with each other by respective coupling devices having common structures, said coupling means being operable between a locked state to retain said parts coupled together and an unlocked state to release the coupling engagement between said parts; and operating means for operating said coupling means to bring said coupling means between said locked state and said unlocked state, said operating means being positioned respectively at sides of said parts arranged to lie in a common plane with a side of another part.
Claim 2
Dependent Claim
153 words
A camera having at least three separable parts arranged in combination comprising: fitting means for fitting each of said parts to another part so as to have portions thereof overlap, said fitting means being arranged to fit each of said parts so that at least one side of each part is arranged to lie in a common plane with a side of another part; coupling means for coupling two successive parts with each other by respective coupling devices having common structures, said coupling means being operable between a locked state to retain said parts coupled together and an unlocked state to release the coupling engagement between said parts; and operating means for operating said coupling means to bring said coupling means between said locked state and said unlocked state, said operating means being positioned respectively at sides of said parts arranged to lie in a common plane with a side of another part.
Claim 3
Dependent Claim
32 words
A camera according to claim 1 wherein said operating means are arranged for sliding movement along said common plane to operate said coupling means between the locked state and the unlocked state.
Claim 4
Dependent Claim
16 words
A camera according to claim 1, wherein said coupling means is provided in said overlapped portion.
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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |