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US2494679A
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Assignee: Individual
•
Filing: 1948-12-13
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Granted: 1950-01-17
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Expires: 1968-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank W Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:44
CPC Classifications
F; F16; F16K; F16K24/00; F16K24/04; Y; Y10; Y10S; Y10S55/00; Y10S55/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320543A
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US834937A
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US1219000A
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US1502944A
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US1784067A
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US1887119A
Cited
US1920261A
Cited
CH188098A
Cited
US2240851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |