Patent US3769490A successfully refreshed from Google Patents.
US3769490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent storage container for tc-99m eluate
Assignee: ER Squibb and Sons LLC
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Filing: 1972-03-27
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Granted: 1973-10-30
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Expires: 1992-03-27
Abstract
Abstract A storage vessel for a reaction vial containing Tc-99m eluate comprises either a transparent leaded glass vessel having a thickness of from about 0.3 cm to about 2.5 cm and a lead content of from about 30 percent to about 65 percent by weight or an inner transparent receptacle which fits into an outer transparent container, the space between the inner and outer containers being filled with an aqueous, substantially saturated solution of lead perchlorate. A syringe for injecting Tc-99m eluate into a patient is formed of leaded glass as above.
Inventors
- 👤 T Czaplinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:51
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/015
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
The container recited in claim 1 including a cap member sealing the tops of said depression and said outer shell which cap member extends across the rim of said outer shell and across said depression, said cap member being crimped about the exterior side walls of said outer shell, and said cap member is fabricated from radioactive shielding material.
Claim 2
Dependent Claim
18 words
The container of claim 1 wherein said radioactive shielding material is a solution of substantially saturated lead perchlorate.
Claim 3
Dependent Claim
40 words
The storage container of claim 1 wherein said cover and said outer shell are fabricated from glass having a wall thickness of 0.3 cm to 2.5 cm and a lead content of from 30 percent to 65 percent by weight.
Claim 4
Dependent Claim
19 words
The storage container of claim 1 wherein said cover and said outer shell are fabricated from a transparent plastic.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |