US2732853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relief device
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:04
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0616; G05D16/0619; F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/08; F16K17/087; G05D16/063; G05D16/0675; G05D16/0683; G05D16/0688; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2607; Y10T137/261; Y10T137/7722; Y10T137/7723; Y10T137/773
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312543A
Cited
US331544A
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US374485A
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US389032A
Cited
US1995480A
Cited
US1679215A
Cited
US1646640A
Cited
DE489565C
Cited
DE721326C
Cited
US2330704A
Cited
US2412490A
Cited
US2498631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |