Patent US3031882A successfully refreshed from Google Patents.
US3031882A
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Pressure compensation for gas analyzers
Assignee: Beckman Coulter Inc
•
Filing: 1958-01-16
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Granted: 1962-05-01
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Louis C Thayer
- 👤 Malbone W Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:31
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N33/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1535829A
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US2032358A
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US2123672A
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US2469038A
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US2431801A
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US2662757A
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US2484207A
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US2743167A
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US2815659A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |