US3928136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for collection of cultures of parasitic fungi and a method of using the same
Assignee: Individual
•
Filing: 1973-10-16
•
Granted: 1975-12-23
•
Expires: 1993-10-16
Abstract
Abstract A container for use in forming a collection of cultures of parasites is made of transparent material, e.g. of transparent plastic, and comprises a vessel having in its upper face an elongated depression of semicylindrical cross-section. A cover enables the vessel to be hermetically sealed by a method eliminating the risk of internal condensation despite the humidity of the agar on which the parasite is cultivated.
Inventors
- 👤 Pierre A Launey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:44
CPC Classifications
C; C12; C12M; C12M23/00; C12M23/02; C12M23/12; Y; Y10; Y10S; Y10S435/00; Y10S435/81
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
106 words
A CONTAINER FOR THE COLLECTION OF CULTURES OF PARASITES OF A FUNGAL NATURE, COMPRISING A VESSEL AND A COVER, BOTH CONSTITUTED OF TRASPARENT MATERIAL, SAID VESSEL COMPRISING A BODY HAVING A FLAT FACE, WHICH BODY HAVING AN ELONGATED CHAMBER OF SEMICYLINDRICAL CROSS-SECTION WHICH IS OPEN AT SAID FLAT FACE, SAID BODY INCLUDING OPPOSITE SIDE WALLS, BETWEEN WHICH THE CHAMBER IS DISPOSED, SAID SIDE WALLS EXTENDING FROM SAID FLAT FACE IN THE SAME DIRECTION AS SAID CHAMBER AND OVER A DISTANCE GREATER THAN THE DEPTH OF THE CHAMBER, SAID COVER BEING CONSTRUCTED OVER THE FLAT FACE OF THE VESSEL AND TO BE HERMETICALLY JOINTED TO THE VESSEL.
Claim 2
Dependent Claim
106 words
A CONTAINER FOR THE COLLECTION OF CULTURES OF PARASITES OF A FUNGAL NATURE, COMPRISING A VESSEL AND A COVER, BOTH CONSTITUTED OF TRASPARENT MATERIAL, SAID VESSEL COMPRISING A BODY HAVING A FLAT FACE, WHICH BODY HAVING AN ELONGATED CHAMBER OF SEMICYLINDRICAL CROSS-SECTION WHICH IS OPEN AT SAID FLAT FACE, SAID BODY INCLUDING OPPOSITE SIDE WALLS, BETWEEN WHICH THE CHAMBER IS DISPOSED, SAID SIDE WALLS EXTENDING FROM SAID FLAT FACE IN THE SAME DIRECTION AS SAID CHAMBER AND OVER A DISTANCE GREATER THAN THE DEPTH OF THE CHAMBER, SAID COVER BEING CONSTRUCTED OVER THE FLAT FACE OF THE VESSEL AND TO BE HERMETICALLY JOINTED TO THE VESSEL.
Claim 3
Dependent Claim
42 words
A container according to claim 1, wherein the elongated chamber contains agar serving as a support for a parasite of a fungal nature which has been arrested in its growth at any desired stage, the cover being hermetically sealed to the vessel.
Claim 4
Dependent Claim
16 words
A container according to claim 1, wherein the vessel and its cover arE made of polystyrene.
Claim 5
Dependent Claim
29 words
A container according to claim 1, wherein the side walls are four in number arranged in opposed pairs which depend from said flat face along four side edges thereof.
Claim 6
Dependent Claim
81 words
A container according to claim 4, wherein the side walls of said body include an outwardly projecting rim at the free end thereof remote from the flat face, said cover including side walls adapted for fitting over the side walls of the body of the vessel, said side walls of the cover having free bottom edges which contact said rim when the cover is placed on said flat face to form a hermetically sealed assembly between the cover and said rim.
Claim 7
Dependent Claim
37 words
A container according to claim 5, wherein said rim has a lower flat support surface which is below the level of the chamber to permit the vessel to rest on a surface with the chamber spaced thereabove.
Claim 8
Dependent Claim
32 words
A container according to claim 6, wherein said vessel is substantially constituted by a single thickness of said transparent material with the wall of said chamber being suspended from said flat face.
Claim 9
Dependent Claim
101 words
A METHOD OF USING CONTAINERS ACCORDING TO CLAIM 1, TO FORM A COLLECTION OF PARASITES OF A FUNGAL NATURE, COMPRISING PLACING A NECESSARY AMOUNT OF AGAR IN THE CHAMBER OF THE VESSEL OF EACH CONTAINER; SEEDING A FUNGAL PARASITE IN THE AGAR AND ALLOWING IT TO DEVELOP TO THE DESIRED STAGE; PLACING THE OPEN CONTAINER IN A HEATED ENVIRONMENT AT 30*C FOR 3 HOURS; CLOSING THE CONTAINER WITH SAID COVER IN AN ATMOSPHERE OF DRY AIR AT 30*C; SEALING THE COVER OF THE CONTAINER; AND SUBJECTING THE CONTAINER AND THE PARASITE TO A FLUX OF GAMMA RAYS FROM A RADIOACTIVE SOURCE.
Claim 10
Dependent Claim
93 words
A method of using containers according to claim 1, to form a collection of cultures of parasites of a fungal nature, comprising placing a necessary amount of agar in the chamber of the vessel of each container; seeding a parasitc fungus in the agar and allowing it to develop to the desired stage; placing the open container in a heated environment at 30*C for 3 hours; and introducing the container into a chamber containing a sterilizing gas atmosphere, and then placing the cover in position and hermetically sealing the cover on the vessel.
References Cited (Backward Citations)
US2677647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |