US2917878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sterile packing
Assignee: Wyeth Holdings LLC
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Filing: 1958-11-13
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Granted: 1959-12-22
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Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 Carnarius Edwin Henry
- 👤 Kaufman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:43
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/06; A61B17/06114; A61B17/06133; B; B65; B65B; B65B55/00; B65B55/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
METHOD OF FORMING STERILE PACKAGES CONTAINING A SURGICAL ITEM IN A PLASTIC ENVELOPE OF A LAMINATE OF A POLYESTER FILM AND A FILM SELECTED FROM THE GROUP CONSISTING OF POLYVINYL FILM AND POLYETHYLENE FILM, WITH THE FACES OF THE FILM FROM SAID GROUP IN CONTACT, PLACING THE ENVELOPE IN A STERILIZING CHAMBER, INTRODUCING A STERILIZING GAS HAVING ITS ACTIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE AND PROPYLENE OXIDE INTO SAID CHAMBER, LEAVING THE STERILIZING GAS IN SAID CHAMBER LONG ENOUGH TO PENETRATE THE PLASTIC ENVELOPE, AND BLEEDING OFF THE STERILIZING GAS.
Claim 2
Dependent Claim
94 words
METHOD OF FORMING STERILE PACKAGES CONTAINING A SURGICAL ITEM IN A PLASTIC ENVELOPE OF A LAMINATE OF A POLYESTER FILM AND A FILM SELECTED FROM THE GROUP CONSISTING OF POLYVINYL FILM AND POLYETHYLENE FILM, WITH THE FACES OF THE FILM FROM SAID GROUP IN CONTACT, PLACING THE ENVELOPE IN A STERILIZING CHAMBER, INTRODUCING A STERILIZING GAS HAVING ITS ACTIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE AND PROPYLENE OXIDE INTO SAID CHAMBER, LEAVING THE STERILIZING GAS IN SAID CHAMBER LONG ENOUGH TO PENETRATE THE PLASTIC ENVELOPE, AND BLEEDING OFF THE STERILIZING GAS.
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |