US3875015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator for uniformly applying a sample to bacterial growth media
Assignee: UTI-TECT Inc A CORP OF
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Filing: 1973-11-15
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Granted: 1975-04-01
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Expires: 1993-11-15
Abstract
Abstract An applicator for uniformly applying a sample to bacterial growth media comprising a frame having absorbent material positioned over the tip of the frame and a sleeve of permeable material covering the absorbent material. The applicator is used in test procedures for determining the presence of microorganisms in a sample, the applicator distributing a uniform film of inoculum with even distribution of any organism which may be present in the sample. The applicator thereby permits quantitation of any organisms which may be present in a suspected sample since it applies a specific amount of the sample.
Inventors
- 👤 Clark Searle Wadley
- 👤 Donald Sykes Kenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:45
CPC Classifications
C; C12; C12M; C12M33/00; C12M33/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
73 words
AN APPLICATOR FOR APPLYING A SAMPLE TO BE EXAMINED TO BACTERIAL GROWTH MEDIA, SAID APPLICATOR COMPRISING: AN ELONGATED FRAME HAVING A TRIP DISPOSED AT ONE END TRANSVERSE TO SAID FRAME; ABSORBENT MATERIAL FITTED OVER THE TIP OF SAID APPLICATOR TO ABSORB THE SAMPLE AND INCLUDING A PERMEABLE SLEEVE POSITIONED OVER THE ABSORBENT MATERIAL, SAID SLEEVE PROVIDING TO THE SAMPLE EASY ACCESS TO THE ABSORBENT MATERIAL, WHEREBY SAID APPLICATOR, WHEN PLACED IN THE SAMPLE,
Claim 2
Dependent Claim
73 words
AN APPLICATOR FOR APPLYING A SAMPLE TO BE EXAMINED TO BACTERIAL GROWTH MEDIA, SAID APPLICATOR COMPRISING: AN ELONGATED FRAME HAVING A TRIP DISPOSED AT ONE END TRANSVERSE TO SAID FRAME; ABSORBENT MATERIAL FITTED OVER THE TIP OF SAID APPLICATOR TO ABSORB THE SAMPLE AND INCLUDING A PERMEABLE SLEEVE POSITIONED OVER THE ABSORBENT MATERIAL, SAID SLEEVE PROVIDING TO THE SAMPLE EASY ACCESS TO THE ABSORBENT MATERIAL, WHEREBY SAID APPLICATOR, WHEN PLACED IN THE SAMPLE,
Claim 3
Dependent Claim
21 words
The applicator of claim 1 wherein the absorbent material comprises cotton cording and the permeable sleeve comprises a woven synthetic fabric.
Claim 4
Independent Claim
102 words
A method of applying a sample to be examined for the presence of bacteria to bacterial growth media, said method comprising: providing an applicator comprising an elongated frame having a tip disposed at one end transverse to the frame and including absorbent material fitted over the tip of the applicator to absorb the sample; dipping the tip of the applicator in the suspected sample for a preselected time; removing the applicator from the sample; allowing a preselected equilibration time to permit the absorbent material to absorb the sample; and inoculating the medium by streaking the sample on the medium with the applicator.
Claim 5
Independent Claim
102 words
A method of applying a sample to be examined for the presence of bacteria to bacterial growth media, said method comprising: providing an applicator comprising an elongated frame having a tip disposed at one end transverse to the frame and including absorbent material fitted over the tip of the applicator to absorb the sample; dipping the tip of the applicator in the suspected sample for a preselected time; removing the applicator from the sample; allowing a preselected equilibration time to permit the absorbent material to absorb the sample; and inoculating the medium by streaking the sample on the medium with the applicator.
References Cited (Backward Citations)
US3149054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |