US2857044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic hot cut "last" flare reclaiming machine
Assignee: Westinghouse Electric Corp
•
Filing: 1953-02-02
•
Granted: 1958-10-21
•
Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Mullan Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:43
CPC Classifications
C; C03; C03B; C03B33/00; C03B33/06; C03B29/00; C03B29/04; C03B29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US223022A
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US1251541A
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US1508358A
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US1493044A
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GB388878A
Cited
US2296935A
Cited
US2349197A
Cited
US2362115A
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US2323182A
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US2504842A
Cited
US2534547A
Cited
US2641870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |