Patent US2241920A successfully refreshed from Google Patents.
US2241920A
Expired / Lapsed
US
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Automatic closing atomizer casing
Assignee: Peabody Engineering Corp
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Filing: 1940-05-07
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Granted: 1941-05-13
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Expires: 1960-05-07
Abstract
No abstract record available.
Inventors
- 👤 Eric G Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:27
CPC Classifications
F; F23; F23C; F23C5/00; F23C5/02; F23D; F23D11/00; F23D11/36; Y; Y10; Y10T; Y10T137/00; Y10T137/5762; Y10T137/5835; Y10T137/598; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7846; Y10T137/8593; Y10T137/87917; Y10T137/87981
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) | 1944-05-12 | 1944-11-11 | 1945-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-05-12 | 1948-11-11 | 1949-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-05-12 | 1952-11-11 | 1953-05-13 | $7700.00 | Window Closed / Lapsed |