US2487104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel safety device
Assignee: Standard Oil Development Co
•
Filing: 1945-02-14
•
Granted: 1949-11-08
•
Expires: 1965-02-14
Abstract
No abstract record available.
Inventors
- 👤 Lyle M Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/002; F; F16; F16K; F16K17/00; F16K17/02; F16K17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1248578A
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US1219493A
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US1697199A
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US1796200A
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US1993301A
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US1954285A
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US2062381A
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US2098399A
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US2079164A
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US2194159A
Cited
US2276830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |