US2451600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube gauge
Assignee: Atlantic Richfield Co
•
Filing: 1945-02-03
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Granted: 1948-10-19
•
Expires: 1965-02-03
Abstract
No abstract record available.
Inventors
- 👤 Charles H Woodcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:54
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/08; G01B5/12; G01B3/00; G01B3/22; G01B3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |