US1328653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-valve for pressure-cookers
Assignee: National Manufacturing Co
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Filing: 1919-04-05
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Granted: 1920-01-20
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Expires: 1939-04-05
Abstract
No abstract record available.
Inventors
- 👤 Walton C Ferris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:21
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/168; A; A47; A47J; A47J27/00; A47J27/08; A47J27/09; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/065; F16K17/04; F16K17/08; F16K17/082; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7878; Y10T137/7904; Y10T137/7922; Y10T137/7924; Y10T137/7929; Y10T137/7932
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) | 1923-01-19 | 1923-07-21 | 1924-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-01-19 | 1927-07-21 | 1928-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-01-19 | 1931-07-21 | 1932-01-20 | $7700.00 | Window Closed / Lapsed |