Patent US2850201A successfully refreshed from Google Patents.
US2850201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for removing and sealing the bottom of a vessel adapted for high pressure
Assignee: ABB Norden Holding AB
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Filing: 1956-11-15
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Granted: 1958-09-02
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Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Liljeblad Ragnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:29
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |