US1933318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety gas burner
Assignee: Cleveland Heater Co
•
Filing: 1927-04-15
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Granted: 1933-10-31
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Expires: 1947-04-15
Abstract
No abstract record available.
Inventors
- 👤 Loran F Doen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:44
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87426; Y10T137/877; Y10T137/87788; Y10T137/87829; Y10T137/87837; Y10T137/87861
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) | 1936-10-30 | 1937-05-01 | 1937-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-30 | 1941-05-01 | 1941-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-30 | 1945-05-01 | 1945-10-31 | $7700.00 | Window Closed / Lapsed |