US2622886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam trap
Assignee: Yarnall Waring Co
•
Filing: 1950-02-01
•
Granted: 1952-12-23
•
Expires: 1970-02-01
Abstract
No abstract record available.
Inventors
- 👤 John F Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:26
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/12; F16T1/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/7722; Y10T137/7781; Y10T137/7832; Y10T137/7837; Y10T137/7838; Y10T137/7846; Y10T137/8593; Y10T137/87917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |