Patent US2663458A successfully refreshed from Google Patents.
US2663458A
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US
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Rupture diaphragm unit
Assignee: Individual
•
Filing: 1950-05-11
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Granted: 1953-12-22
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Expires: 1970-05-11
Abstract
No abstract record available.
Inventors
- 👤 Jr William F Macglashan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:36
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1697199A
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US1974254A
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US2095828A
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US2183208A
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US2263840A
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US2370870A
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US2474826A
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US2437836A
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US2582171A
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US2557120A
Cited
US2548744A
Cited
US2630939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |