US2817397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner head having ribbed cap member provided with peripherally drilled ports
Assignee: Individual
•
Filing: 1951-04-10
•
Granted: 1957-12-24
•
Expires: 1971-04-10
Abstract
No abstract record available.
Inventors
- 👤 Brumbaugh Isaac Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:14
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191419073A
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FR812773A
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FR874101A
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US2544603A
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US2619164A
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US2582900A
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US2646112A
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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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |