Patent US3025745A successfully refreshed from Google Patents.
US3025745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for analyzing gases
Assignee: Beckman Coulter Inc
•
Filing: 1953-06-30
•
Granted: 1962-03-20
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Max D Liston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:25
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/69
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1628256A
Cited
US1871226A
Cited
US2037925A
Cited
US2094694A
Cited
US2280618A
Cited
US2332337A
Cited
US2617940A
Cited
US2670649A
Cited
US2586746A
Cited
US2753479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |