Patent US3402991A successfully refreshed from Google Patents.
US3402991A
Expired / Lapsed
US
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Sterilizer and control apparatus
Assignee: Sybron Transition Corp
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Filing: 1963-08-23
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Granted: 1968-09-24
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Expires: 1983-08-23
Abstract
No abstract record available.
Inventors
- 👤 Henfrey Kenneth Marden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:21
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/04; A61L2/06; A61L2/07; A61L2/24
Claims Analysis
Total Claims: 0
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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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |