Patent US2517455A successfully refreshed from Google Patents.
US2517455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature recorder
Assignee: Halliburton Oil Well Cementing Co
•
Filing: 1944-12-26
•
Granted: 1950-08-01
•
Expires: 1964-12-26
Abstract
No abstract record available.
Inventors
- 👤 Waters Henry Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:06
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; E; E21; E21B; E21B47/00; E21B47/06; E21B47/07
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2315127A
Cited
US2414862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |