US2387024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure vessel and support
Assignee: Shell Development Co
•
Filing: 1944-08-14
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Granted: 1945-10-16
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Expires: 1964-08-14
Abstract
No abstract record available.
Inventors
- 👤 Patrick D Hishon
- 👤 William D Carter
- 👤 Thomas N Ravn
- 👤 Herbert L Borchers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:19
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; F16J13/12; B; B01; B01J; B01J3/00; B01J3/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-10-15 | 1949-04-16 | 1949-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-15 | 1953-04-16 | 1953-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-15 | 1957-04-16 | 1957-10-16 | $7700.00 | Window Closed / Lapsed |