Patent US3549312A successfully refreshed from Google Patents.
US3549312A
Expired / Lapsed
US
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Process and apparatus for recovering sterilization gas for reuse
Assignee: MDT Corp
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Filing: 1968-05-06
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Granted: 1970-12-22
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Expires: 1988-05-06
Abstract
No abstract record available.
Inventors
- 👤 Robert R Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:56
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131134A
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US2526974A
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US3042533A
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US3068064A
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US3088179A
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US3107975A
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US3341280A
Cited
US3372980A
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US3361517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |