US2553520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burner nozzle pipe assembly
Assignee: York Shipley Inc
•
Filing: 1947-04-15
•
Granted: 1951-05-15
•
Expires: 1967-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles H Neiman
- 👤 George W Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:41
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/36; F23D11/40; F23D11/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1965411A
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US2056561A
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US1981248A
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US2065042A
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US2127866A
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US2156121A
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US2163915A
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US2219696A
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US2221519A
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US2233529A
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US2222031A
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US2262525A
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US2393897A
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US2473769A
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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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |