US2649815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever system for steam traps
Assignee: Kaye & Macdonald Inc
•
Filing: 1947-12-12
•
Granted: 1953-08-25
•
Expires: 1967-12-12
Abstract
No abstract record available.
Inventors
- 👤 James W Kaye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:12
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/10; F16T; F16T1/00; F16T1/20; F16T1/30; F16T1/305; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3046; Y10T74/00; Y10T74/20; Y10T74/20558
Claims Analysis
Total Claims: 0
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US2315632A
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US2550643A
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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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |