US2775256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valved fitting
Assignee: Individual
•
Filing: 1954-08-13
•
Granted: 1956-12-25
•
Expires: 1974-08-13
Abstract
No abstract record available.
Inventors
- 👤 Hugh D Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16L; F16L29/00; F16L29/02; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6137; Y10T137/6184; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7925; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1645156A
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US1082182A
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US1223179A
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US1226199A
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US1250503A
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US1343819A
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US1490628A
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US1519231A
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US1597200A
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US1855264A
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US2505949A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |