US2667779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytical apparatus for smokes and gases
Assignee: Baker Petrolite LLC
•
Filing: 1950-12-29
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Granted: 1954-02-02
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Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Brand Ernest Kurt Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:07
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2312295A
Cited
US984047A
Cited
US1207518A
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US2076553A
Cited
US2320368A
Cited
US2228216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |