US2573502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichambered gas burner with selective gas supply
Assignee: Motors Liquidation Co
•
Filing: 1945-05-23
•
Granted: 1951-10-30
•
Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Jr William Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:40
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/06; F23D2900/00; F23D2900/14; F23D2900/14062; Y; Y10; Y10S; Y10S137/00; Y10S137/905; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE293901C
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US706633A
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CH32665A
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US1461663A
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US1754388A
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US2185275A
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FR808902A
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US2162233A
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US2319866A
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US2376273A
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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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |