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Patent US3062401A successfully refreshed from Google Patents.
US3062401A
Expired / Lapsed
US
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Closure for a pressure vessel
Assignee: AO Smith Corp
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Filing: 1959-10-01
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Granted: 1962-11-06
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Needham Margaret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:15
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; F16; F16J; F16J13/00; F16J13/02; F16J13/06; F16J13/065
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |