Patent US2558563A successfully refreshed from Google Patents.
US2558563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric strain gauge
Assignee: General Electric Co
•
Filing: 1948-10-29
•
Granted: 1951-06-26
•
Expires: 1968-10-29
Abstract
No abstract record available.
Inventors
- 👤 William H Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/16; G01H; G01H11/00; G01H11/06; G01H11/08; Y; Y10; Y10S; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |