US2513462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic pressure relief for tumbling barrels
Assignee: DJ Murray Manufacturing Co
•
Filing: 1948-12-30
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Granted: 1950-07-04
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Expires: 1968-12-30
Abstract
No abstract record available.
Inventors
- 👤 Eklund Henrik Jarl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:55
CPC Classifications
F; F16; F16K; F16K24/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86276; Y10T137/86389; Y10T137/86405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US205045A
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US408690A
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US1141503A
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US1369007A
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US1275463A
Cited
US1372244A
Cited
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Cited
US1948279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |