US3031882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure compensation for gas analyzers
Assignee: Beckman Coulter Inc
•
Filing: 1958-01-16
•
Granted: 1962-05-01
•
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 18:20
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0011; G01N33/0016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1661347A
Cited
US1535829A
Cited
US2032358A
Cited
US2123672A
Cited
US2469038A
Cited
US2431801A
Cited
US2662757A
Cited
US2484207A
Cited
US2743167A
Cited
US2815659A
Cited
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 |