US3447892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizer
Assignee: JAMES S WATSON
•
Filing: 1965-02-25
•
Granted: 1969-06-03
•
Expires: 1985-02-25
Abstract
No abstract record available.
Inventors
- 👤 James S Watson
- 👤 Keith Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:16
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126247A
Cited
US2212330A
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US2323290A
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US2554156A
Cited
US2591288A
Cited
US2822476A
Cited
US2788536A
Cited
US2821453A
Cited
US3034516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |