US5871361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Educational kit
Assignee: Microbix Biosystems Inc
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Filing: 1995-05-12
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Granted: 1999-02-16
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Expires: 2015-05-12
Abstract
Abstract A kit for students to carry out biotechnology experiments in a classroom, comprising a plurality of first containers, each of the first containers containing a sample of a prepared substance for use in the experiments; at least one of the prepared substances including a biologically derived constituent; each of the prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment. A plurality of second containers are also provided, the second containers being arranged to receive a number of test samples of substances to be tested. A number of aids are also provided to allow the students to carry out the experiments in the absence of instrumentation used in the industrial experiment, along with a set of instructions to permit the students to carry out the classroom experiment and thereby to better understand the industrial experiment.
Inventors
- 👤 William J. Gastle
- 👤 Joachim Sparkuhl
- 👤 Kevin Cassidy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:39
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
152 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances including a nonvirulent strain of Salmonella typhimurium.
Claim 2
Dependent Claim
152 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances including a nonvirulent strain of Salmonella typhimurium.
Claim 3
Dependent Claim
151 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances include substituents originating from human urine.
Claim 4
Dependent Claim
151 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances include substituents originating from human urine.
Claim 5
Dependent Claim
198 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances include substituents originating from human urine, said samples further comprising a first sample including urine containing cotinine at a level representative of the urine of a subject known to be a heavy tobacco user and a second sample including urine with substantially no cotinine and from a subject known not to use tobacco.
Claim 6
Dependent Claim
198 words
A kit for students to carry out biotechnology experiments in a classroom, comprising: a plurality of first containers, each of said first containers containing a sample of a prepared substance for use in said experiments; at least one of said prepared substances including a biologically derived constituent; each of said prepared substances having constituents selected for their safety in a classroom experiment, while being representative of a substance used in an industrial experiment; a plurality of second containers, said second containers being arranged to receive a number of test samples of substances to be tested; and a number of aids to allow said students to carry out said experiments in the absence of instrumentation used in said industrial experiment; and a set of instructions to permit said students to carry out said classroom experiment and thereby to better understand said industrial experiment, said prepared substances include substituents originating from human urine, said samples further comprising a first sample including urine containing cotinine at a level representative of the urine of a subject known to be a heavy tobacco user and a second sample including urine with substantially no cotinine and from a subject known not to use tobacco.
Claim 7
Dependent Claim
26 words
A kit as defined in claim 3 wherein said samples further comprise a third sample including cotinine at a level between said first and second samples.
Claim 8
Dependent Claim
20 words
A kit as defined in claim 4 wherein said samples further comprise a sample of cotinine bearing a label compound.
Claim 9
Dependent Claim
14 words
A kit as defined in claim 5 wherein said label compound is alkaline phosphatase.
Claim 10
Dependent Claim
56 words
A kit as defined in claim 6 further comprising a sample including a substituent reactive with said label compound to form another compound, said other compound having a colour different from that of both said label reactive substituent and said label compound thereby to enable the student to visibly detect the presence of said other compound.
Claim 11
Dependent Claim
29 words
A kit as defined in claim 7 wherein said aids include a plurality of dipsticks, each of said dipsticks including a substrate layer bearing an antibody specific to cotinine.
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) | 2002-02-15 | 2002-08-17 | 2003-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-15 | 2006-08-17 | 2007-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-15 | 2010-08-17 | 2011-02-16 | $7700.00 | Window Closed / Lapsed |