Patent US3202198A successfully refreshed from Google Patents.
US3202198A
Expired / Lapsed
US
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Safety valve assembly for pulse jet burners and the like
Assignee: Junkers and Co GmbH
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Filing: 1963-11-04
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Granted: 1965-08-24
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Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Haag Franz
- 👤 Schork Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:43
CPC Classifications
F; F23; F23C; F23C15/00; F23N; F23N1/00; F23N1/007; F23N2235/00; F23N2235/12; F23N2235/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/7772; Y10T137/7777
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |