Patent US2927965A successfully refreshed from Google Patents.
Patent US2251935A successfully refreshed from Google Patents.
US2418052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring and controlling apparatus
Assignee: Brown Instruments Co
•
Filing: 1942-10-08
•
Granted: 1947-03-25
•
Expires: 1962-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Side
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:34
CPC Classifications
G; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05B1/027; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1586233A
Cited
US1994904A
Cited
US2112682A
Cited
US2245034A
Cited
US2300742A
Cited
US2275317A
Cited
US2312711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |