US3608593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of filling powders into containers
Assignee: Eli Lilly and Co
•
Filing: 1970-02-27
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Granted: 1971-09-28
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Expires: 1990-02-27
Abstract
Abstract Powders are filled into bottles, ampoules, vials, syringes, and other containers by suspending the powder in an inert, volatile, liquid diluent, filling the suspension into the container, and evaporating the inert, liquid diluent, leaving the dry powder in the container.
Inventors
- 👤 Samuel L Mccormick Jr
- 👤 John J Burke
- 👤 Arthur R Morstadt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:55
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/04; A; A61; A61K; A61K9/00; A61K9/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
19 words
A method as in claim 1 wherein the inert, liquid diluent has a boiling point below about 50* C.
Claim 2
Dependent Claim
11 words
A method as in claim 2 wherein the powder is cephaloridine.
Claim 3
Dependent Claim
11 words
A method as in claim 2 wherein the powder is cephalothin.
Claim 4
Dependent Claim
38 words
A method as in claim 1 wherein the inert, liquid diluent is evaporated by placing the filled container in a closed evaporation vessel, introducing warm air into the vessel under a positive pressure, and periodically venting the vessel.
Claim 5
Dependent Claim
18 words
A method as in claim 5 wherein the powder is cephalothin and the inert, liquid diluent is isopropanol.
References Cited (Backward Citations)
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Cited
US1091251A
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US1486883A
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US2235748A
Cited
US2686085A
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US2889856A
Cited
US3381831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |