US2628675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas burner and port-forming grid
Assignee: PALMER Manufacturing CORP
•
Filing: 1948-02-20
•
Granted: 1953-02-17
•
Expires: 1968-02-20
Abstract
No abstract record available.
Inventors
- 👤 Oscar C Palmer
- 👤 William J Schmoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:25
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04; F23D14/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1420405A
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US1896286A
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DE565470C
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GB501143A
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US2541428A
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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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |