US2609871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner with vertically spaced ports and interior baffle
Assignee: Individual
•
Filing: 1947-05-01
•
Granted: 1952-09-09
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Brumbaugh Isaac Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06; F23D14/065
Claims Analysis
Total Claims: 0
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US2400030A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |