US3307052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piezoelectric stress gage
Assignee: Individual
•
Filing: 1964-04-06
•
Granted: 1967-02-28
•
Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Frank W Neilson
- 👤 Robert A Graham
- 👤 William B Benedick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:36
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/16; H; H10; H10N; H10N30/00; H10N30/30; H10N30/302; H10N30/80; H10N30/87
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2956184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |