US1849335A
Expired / Lapsed
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Method and apparatus for proportioning fluids used in combustion processes
Assignee: Cutler Hammer Inc
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Filing: 1927-11-05
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Granted: 1932-03-15
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Expires: 1947-11-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin X Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
F; F23; F23N; F23N3/00; F23N3/08; F23N3/085; F23N1/00; F23N1/02; F23N1/025; F23N2221/00; F23N2221/10; F23N2225/00; F23N2225/04; F23N2237/00; F23N2237/16; F23N5/00; F23N5/18; Y; Y10; Y10S; Y10S261/00; Y10S261/02; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0346; Y10T137/0368; Y10T137/2496; Y10T137/2499; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/8158; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87732; Y10T137/87772
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) | 1935-03-15 | 1935-09-14 | 1936-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-15 | 1939-09-14 | 1940-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-15 | 1943-09-14 | 1944-03-15 | $7700.00 | Window Closed / Lapsed |