US2617625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1946-05-11
•
Granted: 1952-11-11
•
Expires: 1966-05-11
Abstract
No abstract record available.
Inventors
- 👤 Twyman L Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:10
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/58; F16K7/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2546; Y10T137/2549; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US274447A
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US507224A
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US670725A
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US1238521A
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US2069105A
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US2075249A
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GB502094A
Cited
US2218308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |