Patent US3545279A successfully refreshed from Google Patents.
US3545279A
Expired / Lapsed
US
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Sample injection for gas chromatographs
Assignee: PE Manufacturing GmbH
•
Filing: 1967-06-21
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Granted: 1970-12-08
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Expires: 1987-06-21
Abstract
No abstract record available.
Inventors
- 👤 Dietrich Jentzsch
- 👤 Kurt Henker
- 👤 Helmut Kruger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:28
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/04; G01N30/16; G01N30/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2120248A
Cited
US2496258A
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US2593552A
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US2959677A
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GB1025510A
Cited
US3238784A
Cited
US3383923A
Cited
US3364958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |