Patent US3397462A successfully refreshed from Google Patents.
US3397462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for lyophilization of substances containing an aqueous phase
Assignee: Edwards High Vacuum International Ltd
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Filing: 1966-02-16
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Granted: 1968-08-20
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Jellicich Maria Sonia M Marchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:51
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/04; F26B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN APPARATUS FOR USE IN LYPOHILIZATION OF A SUBSTANCE CONTAINING AN AQUEOUS PHASE COMPRISING IN COMBINATION A BASEPLATE, A FRAME AND A LID, QUIDE MEANS FOR ASSEMBLING SAID FRAME ON SAID PLATE AND SAID LID ON SAID FRAME, MEANS FOR INSURING A TIGHT SEAL IN SAID ASSEMBLAE, AND MEANS FOR PERMITTING ENTRY OF GAS INTO SAID SEALED ASSEMBLAGE, SAID GAS ENTRY MEANS BEING CONTROLLED FROM OUTSIDE OF SAID ASSEMBLAGE.
Claim 2
Independent Claim
69 words
AN APPARATUS FOR USE IN LYPOHILIZATION OF A SUBSTANCE CONTAINING AN AQUEOUS PHASE COMPRISING IN COMBINATION A BASEPLATE, A FRAME AND A LID, QUIDE MEANS FOR ASSEMBLING SAID FRAME ON SAID PLATE AND SAID LID ON SAID FRAME, MEANS FOR INSURING A TIGHT SEAL IN SAID ASSEMBLAE, AND MEANS FOR PERMITTING ENTRY OF GAS INTO SAID SEALED ASSEMBLAGE, SAID GAS ENTRY MEANS BEING CONTROLLED FROM OUTSIDE OF SAID ASSEMBLAGE.
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |