Patent US2391048A successfully refreshed from Google Patents.
US2391048A
Expired / Lapsed
US
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Spraying device for divided solid materials
Assignee: SPRAY PROCESS CO Inc
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Filing: 1943-02-11
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Granted: 1945-12-18
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Expires: 1963-02-11
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Vose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:19
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/205; E01C2019/2055; E01C2019/206; Y; Y10; Y10S; Y10S239/00; Y10S239/21
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) | 1948-12-17 | 1949-06-18 | 1949-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-17 | 1953-06-18 | 1953-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-17 | 1957-06-18 | 1957-12-18 | $7700.00 | Window Closed / Lapsed |