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US4878971A
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Method of continuously assembling chemical analysis slides
Assignee: Fujifilm Holdings Corp
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Filing: 1988-01-27
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Granted: 1989-11-07
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Expires: 2008-01-27
Abstract
Abstract A chemical analysis slide includes at least two plastic sheets superposed one on another and bonded together, and a chemical analysis film sandwiched therebetween. In a method of continuously assembling such chemical analysis slides, while at least two plastic sheets in continous lengths are conveyed in the longitudinal direction thereof, a plurality of chemical anaylsis films are sandwiched between the plastic sheets at predetermined intervals, the plastic sheets are bonded together at a portion circumscribing each of the chemical analysis films sandwiched therebetween to form a sheet assembly and individual chemical analysis slides are cut out from the sheet assembly. At least one of the sheets in continuous lengths is provided with a plurality of slits extending in the transverse direction of the sheet at regular intervals at the remaining portions of the sheet which do not form a part of the chemical analysis slide.
Inventors
- 👤 Yuzo Tsunekawa
- 👤 Yukio Ishida
- 👤 Tatsuo Shiino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:44
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B32B38/00; B32B38/0004; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/525; B01L2300/00; B01L2300/08; B01L2300/0809; B01L2300/0822; B01L2300/0887; B32B38/04; B32B2038/045; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24314; Y10T436/00; Y10T436/11; Y10T436/110833
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A method of continuously assembling chemical analysis slides each including at least two plastic sheets superposed one on another and bonded together, and a chemical analysis film sandwiched therebetween in which while at least two plastic sheets in continuous lengths are conveyed in the longitudinal direction thereof, a plurality of chemical analysis films are sandwiched between the plastic sheets at predetermined intervals, the plastic sheets are bonded together at a portion circumscribing each of the chemical analysis films sandwiched therebetween to form a sheet assembly and individual chemical analysis slides are cut out from the sheet assembly, characterized in that at least one of the sheets in continuous lengths is provided with a plurality of slit means extending in the transverse direction of the sheet at regular intervals at the remaining portions of the sheet which do not form a part of the chemical analysis slide.
Claim 2
Independent Claim
146 words
A method of continuously assembling chemical analysis slides each including at least two plastic sheets superposed one on another and bonded together, and a chemical analysis film sandwiched therebetween in which while at least two plastic sheets in continuous lengths are conveyed in the longitudinal direction thereof, a plurality of chemical analysis films are sandwiched between the plastic sheets at predetermined intervals, the plastic sheets are bonded together at a portion circumscribing each of the chemical analysis films sandwiched therebetween to form a sheet assembly and individual chemical analysis slides are cut out from the sheet assembly, characterized in that at least one of the sheets in continuous lengths is provided with a plurality of slit means extending in the transverse direction of the sheet at regular intervals at the remaining portions of the sheet which do not form a part of the chemical analysis slide.
Claim 3
Dependent Claim
41 words
A method of continuously assembling chemical analysis slides as defined in claim 1 in which a plurality of locating holes are formed in said at least one sheet at the remaining portion, at least one between each pair of slit means.
Claim 4
Dependent Claim
33 words
A method of continuously assembling chemical analysis slides as defined in claim 2 in which each of said slit means comprises a plurality of slits extending in the transverse direction of the sheets.
References Cited (Backward Citations)
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JPS55164356A
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JPH05321677A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |