Patent US4952957A successfully refreshed from Google Patents.
US4952957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Focal plane shutter-type camera
Assignee: Seiko Precision Inc
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Filing: 1989-09-07
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Granted: 1990-08-28
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Expires: 2009-09-07
Abstract
Abstract A focal plane shutter camera including a first chamber forming section having a baseplate with a shutter opening formed therein and which accommodates shutter blades and including a second chamber forming section which accommodates shutter controlling members. A lower plate structure member is assembled to a baseplate structure member and is provided with a lower plate for partitioning the first and second chambers.
Inventors
- 👤 Ichiro Nemoto
- 👤 Takahito Otora
- 👤 Osamu Miyauchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:15
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/08; G03B9/10; G03B9/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
64 words
A focal plane shutter type camera comprising: a baseplate structure member comprised of a first chamber forming section having a baseplate with a shutter opening formed therein and adapted to accommodate shutter controlling members; and a lower plate structure member assembled to said baseplate structure member from the first chamber side and provided with a lower plate for partitioning said first and second chambers.
Claim 2
Dependent Claim
64 words
A focal plane shutter type camera comprising: a baseplate structure member comprised of a first chamber forming section having a baseplate with a shutter opening formed therein and adapted to accommodate shutter controlling members; and a lower plate structure member assembled to said baseplate structure member from the first chamber side and provided with a lower plate for partitioning said first and second chambers.
Claim 3
Dependent Claim
31 words
A focal plane shutter-type camera according to claim 1, wherein said shutter controlling members and said lower plate structure member are resiliently assembled to and coupled with said baseplate structure member.
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) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |