US2315682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring instrument
Assignee: Brown Instruments Co
•
Filing: 1938-12-02
•
Granted: 1943-04-06
•
Expires: 1958-12-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Wiegmann
- 👤 Walter G Trumbower
- 👤 Coleman B Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:10
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04; G01R13/08; Y; Y10; Y10T; Y10T74/00; Y10T74/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-04-05 | 1946-10-05 | 1947-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-04-05 | 1950-10-05 | 1951-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-04-05 | 1954-10-05 | 1955-04-06 | $7700.00 | Window Closed / Lapsed |