US2857520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizer for running liquids
Assignee: US Philips Corp
•
Filing: 1955-03-14
•
Granted: 1958-10-21
•
Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jacob Van Wilgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:21
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/50; A23B2/53; A61; A61L; A61L2/00; A61L2/02; A61L2/08; A61L2/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2667584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |