Patent US5817510A successfully refreshed from Google Patents.
US5817510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for evaluating microorganisms
Assignee: Xechem International Inc
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Filing: 1996-11-13
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Granted: 1998-10-06
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Expires: 2016-11-13
Abstract
Abstract A device for culturing and identifying microorganisms comprising a transparent vessel with a sealable cover, a nutrient substrate carrier that can be coated with a novel growth medium and a method of using the same are disclosed. A plurality of nutrient substrates may be applied to the nutrient substrate carrier and separated into distinct zones so that a variety of microorganisms may be tested for. The method comprises innoculating the nutrient substrate with a liquid sample and incubating the nutrient substrate so that the microorganisms can be identified by visual observation of the color change of the substrate through the transparent vessel.
Inventors
- 👤 Ramesh C. Pandey
- 👤 Swami Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:44
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5085; B01L3/50853; B01L3/502; B01L3/5025; C; C12; C12M; C12M23/00; C12M23/02; C12M23/12; C12M23/22; C12M23/38; C12M23/46; C12M41/00; C12M41/30; C12M41/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
123 words
A device for use in culturing and identifying microorganisms comprising: a base having formed within it a plurality of wells for receiving media and specimens, the base being transparent and having a front end and a back end, a transparent lid for covering the base and the wells therein, the lid having a front end and a back end, an exterior side and an interior side, the lid having means for fluid communication with the wells from the exterior side of the lid to the wells wherein the means for enabling communication in the device is a centrally positioned aperture connected to a plurality of channels, each of the channels extending through the lid to be positioned above each well in the base.
Claim 2
Independent Claim
123 words
A device for use in culturing and identifying microorganisms comprising: a base having formed within it a plurality of wells for receiving media and specimens, the base being transparent and having a front end and a back end, a transparent lid for covering the base and the wells therein, the lid having a front end and a back end, an exterior side and an interior side, the lid having means for fluid communication with the wells from the exterior side of the lid to the wells wherein the means for enabling communication in the device is a centrally positioned aperture connected to a plurality of channels, each of the channels extending through the lid to be positioned above each well in the base.
Claim 3
Dependent Claim
19 words
The device of claim 1 wherein the wells in the base are placed within a platform on the base.
Claim 4
Dependent Claim
29 words
The device of claim 1 wherein the front end of the lid engages the front end of the base in only one position to ensure sealing of the device.
Claim 5
Dependent Claim
16 words
The device of claim 1 wherein the plurality of channels radiate from the centrally positioned aperture.
References Cited (Backward Citations)
US3278393A
Cited
US3725004A
Cited
US3769936A
Cited
US3936356A
Cited
US4012288A
Cited
US4038149A
Cited
US4304865A
Cited
US4235963A
Cited
US4385123A
Cited
USD264810S
Cited
US4495289A
Cited
DE3136251A1
Cited
US4690896A
Cited
US4801547A
Cited
US4952510A
Cited
US4863689A
Cited
WO1991018085A1
Cited
USD338965S
Cited
US5358871A
Cited
US5462860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-10-05 | 2002-04-06 | 2002-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-05 | 2006-04-06 | 2006-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-05 | 2010-04-06 | 2010-10-06 | $7700.00 | Window Closed / Lapsed |