US1906052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boiler return trap
Assignee: Milwaukee Valve Co Inc
•
Filing: 1928-07-05
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Granted: 1933-04-25
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Expires: 1948-07-05
Abstract
No abstract record available.
Inventors
- 👤 Fina Valentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:59
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/08; F24D19/081; Y; Y10; Y10S; Y10S137/00; Y10S137/901; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2937; Y10T137/2947; Y10T137/2965; Y10T137/7287; Y10T137/7358; Y10T137/7381; Y10T137/7387; Y10T137/7391
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-04-24 | 1936-10-24 | 1937-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-04-24 | 1940-10-24 | 1941-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-04-24 | 1944-10-24 | 1945-04-25 | $7700.00 | Window Closed / Lapsed |