US1784522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for measuring
Assignee: Brown Instruments Co
•
Filing: 1929-09-21
•
Granted: 1930-12-09
•
Expires: 1949-09-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:18
CPC Classifications
G; G01; G01D; G01D9/00; G01D9/02; G01D9/10; G01D9/16; G01B; G01B7/00; G01B7/02; G01C; G01C21/00; G01C21/20; G01D15/00; G01D15/24; G01D9/12
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) | 1933-12-08 | 1934-06-09 | 1934-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-08 | 1938-06-09 | 1938-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-08 | 1942-06-09 | 1942-12-09 | $7700.00 | Window Closed / Lapsed |