Patent US4009929A successfully refreshed from Google Patents.
US4009929A
Expired / Lapsed
US
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Binomial microscope
Assignee: Konan Camera Research Institue Inc
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Filing: 1975-09-30
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Granted: 1977-03-01
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Expires: 1995-09-30
Abstract
Abstract A binomial microscope which includes an auxiliary objective and a pair of parallel optical axes each having objective and ocular lenses and means for moving the objective lenses perpendicular to their optical axes to form the observed image substantially coincident with the object being observed.
Inventors
- 👤 Kuniomi Abe
- 👤 Yuji Maekawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:09
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20; G02B21/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A binomial microscope comprising an auxiliary objective and a pair of optical systems having substantially parallel optical axes and being arranged in the rear of said auxiliary objective, each of said optical systems including an objective and an ocular, and said optical system further includes means for moving said objective in the direction substantially perpendicular to said optical axis while maintaining the remaining optical elements in fixed positions.
Claim 2
Dependent Claim
68 words
A binomial microscope comprising an auxiliary objective and a pair of optical systems having substantially parallel optical axes and being arranged in the rear of said auxiliary objective, each of said optical systems including an objective and an ocular, and said optical system further includes means for moving said objective in the direction substantially perpendicular to said optical axis while maintaining the remaining optical elements in fixed positions.
References Cited (Backward Citations)
GB907679A
Cited
US3434772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |