US2897367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectroscopy
Assignee: Applied Research Laboratories Inc
•
Filing: 1956-04-25
•
Granted: 1959-07-28
•
Expires: 1976-04-25
Abstract
No abstract record available.
Inventors
- 👤 Andermann George
- 👤 Kemp Joseph Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:52
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/207; G01N23/2076; G01N23/22; G01N23/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB506022A
Cited
US2318667A
Cited
US2442752A
Cited
US2635192A
Cited
US2602142A
Cited
US2532810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |