US3523872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas analysis
Assignee: Beckman Coulter Inc
•
Filing: 1965-02-18
•
Granted: 1970-08-11
•
Expires: 1985-02-18
Abstract
No abstract record available.
Inventors
- 👤 Paul A Hersch
- 👤 Rudolf Deuringer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:46
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404; G01N27/4045; G01N27/416; G01N27/42; G01N27/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3248309A
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US3236759A
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US3234117A
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US3448031A
Cited
US3361661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |