US1897432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fuel feeding device
Assignee: MAY OIL BURNER Corp
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Filing: 1929-11-02
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Granted: 1933-02-14
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Expires: 1949-11-02
Abstract
No abstract record available.
Inventors
- 👤 Klotzman Aaron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:25
CPC Classifications
F; F23; F23K; F23K5/00; F23K5/02; F23K5/14; F23K5/147; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2559; Y10T137/2574; Y10T137/2577; Y10T137/2605; Y10T137/2617; Y10T137/262; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7794; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7925
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) | 1936-02-14 | 1936-08-15 | 1937-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-02-14 | 1940-08-15 | 1941-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-02-14 | 1944-08-15 | 1945-02-14 | $7700.00 | Window Closed / Lapsed |