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US1630362A
Expired / Lapsed
US
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Valve
Assignee: American Radiator Co
•
Filing: 1921-04-16
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Granted: 1927-05-31
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Expires: 1941-04-16
Abstract
No abstract record available.
Inventors
- 👤 William S Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:10
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7738; Y10T137/7748; Y10T137/7749
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) | 1930-05-30 | 1930-11-29 | 1931-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-30 | 1934-11-29 | 1935-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-30 | 1938-11-29 | 1939-05-31 | $7700.00 | Window Closed / Lapsed |