US3048699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring absorption spectra
Assignee: Texaco Inc
•
Filing: 1958-05-15
•
Granted: 1962-08-07
•
Expires: 1978-05-15
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:18
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/08; G01J3/28; G01J3/42
Claims Analysis
Total Claims: 0
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US2170435A
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US2960612A
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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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |