Patent US2836233A successfully refreshed from Google Patents.
US2836233A
Expired / Lapsed
US
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Nozzle for gas burners and the like having circumferential slots
Assignee: Shell Development Co
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Filing: 1954-10-25
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Granted: 1958-05-27
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Schoenmakers Pieter Jan
- 👤 Putte Willem Lodewijk Van De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:10
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/02; F23D14/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US733236A
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GB190516911A
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US1130073A
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US1436420A
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US1518223A
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US2044511A
Cited
US1908135A
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US2368802A
Cited
US2582577A
Cited
US2572445A
Cited
US2607405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |