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US1648329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner
Assignee: Individual
•
Filing: 1926-02-02
•
Granted: 1927-11-08
•
Expires: 1946-02-02
Abstract
No abstract record available.
Inventors
- 👤 Charles W Sievert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:41
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04
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) | 1930-11-07 | 1931-05-09 | 1931-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-11-07 | 1935-05-09 | 1935-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-11-07 | 1939-05-09 | 1939-11-08 | $7700.00 | Window Closed / Lapsed |