Patent US4351911A successfully refreshed from Google Patents.
Patent US3500187A successfully refreshed from Google Patents.
US3500187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Probe for apparatus making temperature compensated resistance measurements of a moving bed of highly abrasive material
Assignee: Bethlehem Steel Corp
•
Filing: 1969-03-20
•
Granted: 1970-03-10
•
Expires: 1989-03-20
Abstract
No abstract record available.
Inventors
- 👤 Lloyd V Fegan Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:44
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/045; G01N27/046; G01K; G01K1/00; G01K1/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1910021A
Cited
US2328853A
Cited
US2599862A
Cited
US2553754A
Cited
US2927252A
Cited
US2870403A
Cited
US2930224A
Cited
GB922225A
Cited
US3141129A
Cited
US3207981A
Cited
US3188561A
Cited
US3249970A
Cited
US3302102A
Cited
US3364422A
Cited
US3361964A
Cited
US3361944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |