US2516672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring radiant energy
Assignee: ExxonMobil Oil Corp
•
Filing: 1944-05-27
•
Granted: 1950-07-25
•
Expires: 1964-05-27
Abstract
No abstract record available.
Inventors
- 👤 Frank G Brockman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; Y; Y10; Y10S; Y10S246/00; Y10S246/01
Claims Analysis
Total Claims: 0
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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) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |