Patent US4272049A successfully refreshed from Google Patents.
US4272049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mould for moulding specimen blocks to be cut in a microtome or an ultramicrotome
Assignee: Reichert Jung Optische Werke AG
•
Filing: 1979-06-14
•
Granted: 1981-06-09
•
Expires: 1999-06-14
Abstract
Abstract A mould to be used for making specimen blocks for embedding specimens to be sectioned by a microtome, or ultramicrotome, is made from a soft heat resistant plastic to provide a number of cavities having the desired shape for the blocks to be moulded, the walls of the lowermost portions of the cavities being thin enough to be deformable by upward pressure on the exterior of the mould to remove the finished blocks with their embedded specimens.
Inventors
- 👤 Erik L. Kindel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:39
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/44; B29C33/48; B29C33/50; B29C33/0011; B29L; B29L2031/00; B29L2031/40; G; G01; G01N; G01N1/00; G01N1/28; G01N1/36; G01N2001/366
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A mould for moulding specimen blocks to be cut in a microtome or an ultramicrotome, characterized in that it comprises an elongated horizontal plate and two integrally moulded supporting side walls the plate and the side walls being made from a soft heat resistant plastic and the plate being provided with a number of integrally formed depending cavities of a substantially cylindrical upper internal shape corresponding to the desired shape of the specimen block, the plate, side walls and the major upper parts of the cavities having relatively thick walls and the bottom part of each cavity being provided with a thin-walled deformable substantially transparent zone so as to enable the moulded block to be pressed out of the mould by means of deforming the deformation zone, the vertical height of the side walls being greater than the extending depending length of the cavities to prevent contact of the cavities with a horizontal supporting surface.
Claim 2
Dependent Claim
155 words
A mould for moulding specimen blocks to be cut in a microtome or an ultramicrotome, characterized in that it comprises an elongated horizontal plate and two integrally moulded supporting side walls the plate and the side walls being made from a soft heat resistant plastic and the plate being provided with a number of integrally formed depending cavities of a substantially cylindrical upper internal shape corresponding to the desired shape of the specimen block, the plate, side walls and the major upper parts of the cavities having relatively thick walls and the bottom part of each cavity being provided with a thin-walled deformable substantially transparent zone so as to enable the moulded block to be pressed out of the mould by means of deforming the deformation zone, the vertical height of the side walls being greater than the extending depending length of the cavities to prevent contact of the cavities with a horizontal supporting surface.
References Cited (Backward Citations)
US2053711A
Cited
US2182454A
Cited
US2285149A
Cited
US2433210A
Cited
US2469067A
Cited
US2955044A
Cited
US2932386A
Cited
US2996762A
Cited
US3261600A
Cited
US3859020A
Cited
US3807604A
Cited
US3996326A
Cited
US4012475A
Cited
US4044161A
Cited
US4076207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-08 | 1984-12-08 | 1985-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-08 | 1988-12-08 | 1989-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-08 | 1992-12-08 | 1993-06-09 | $7700.00 | Window Closed / Lapsed |