US3198062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame photometers
Assignee: FREDERICK G KEYES Inc
•
Filing: 1960-05-12
•
Granted: 1965-08-03
•
Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 Chaffee Emory Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:03
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/72
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
IN APPARATUS FOR FLAME PHOTOMETRY, IN COMBINATION, A BURNER FOR PROVIDING A FLAME AND HAVING INLET MEANS FOR FEEDING LIQIUD TO THE BURNER FOR DISPERSION IN THE FLAME, A SOURCE FOR SUPPLYING PURE SOLVENT AT A CONTROLLED RATE, A FEEDER OPERABLE TO SUPPLY SAMPLE SOLUTION AT A CONTROLLED RATE, AND CONNECTING MEANS BETWEEN THE SOURCE, THE FEEDER AND THE BURNER INCLUDING A VALVE OPERABLE TO ADMIN LIQUID FROM EITHER THE SOURCE OR THE FEEDER TO THE INLET MEANS.
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |