US2961602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for determining physical properties of materials
Assignee: Houston Oil Field Material Co Inc
•
Filing: 1954-05-12
•
Granted: 1960-11-22
•
Expires: 1974-05-12
Abstract
No abstract record available.
Inventors
- 👤 Bender John Carlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:47
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/021; E21B47/00; E21B47/09; E21B47/092; G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2358520A
Cited
US2353211A
Cited
US2442805A
Cited
US2470828A
Cited
US2558427A
Cited
US2527170A
Cited
US2814019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |