US3576594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the sterilization of solid surfaces
Assignee: Lever Brothers Co
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Filing: 1968-07-24
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Granted: 1971-04-27
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Expires: 1988-07-24
Abstract
Abstract THE STERILISATION OF SOLID SURFACES, SUCH AS THE INTERIOR OF FOOD CONTAINERS, IS ACHIEVED BY HYDROGEN CHLORIDE GAS AT TEMPERATURES BELOW 40*C. IN A MANNER SUCH THAT THERE IS NO RESIDUAL HYDROCHLORIC ACID ON THE STERILISED SURFACE, CONTROL OF THE INTERRELATED FACTORS OF TEMPERATURE, DURATION OF CONTACT, AND WATER-VAPOR, HYDROGEN CHLORIDE CONTENT BEING EMPLOYED.
Inventors
- 👤 Alexander Knetemann
- 👤 Hubertus Leonardus M Lelieveld
- 👤 Renee Van Rhee
- 👤 Gerard Tuynenburg Muys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |