Patent US2768370A successfully refreshed from Google Patents.
US2768370A
Expired / Lapsed
US
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Continuous automatic gas analyzer
Assignee: Vitro Corp of America
•
Filing: 1952-10-30
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Granted: 1956-10-23
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Expires: 1972-10-30
Abstract
No abstract record available.
Inventors
- 👤 Maninger Ralph Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:07
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/8483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23023E
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US1711742A
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US2232622A
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US2395489A
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US2386878A
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US2547212A
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US2617940A
Cited
US2519081A
Cited
US2639418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |