US3304528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric strain gauge
Assignee: Individual
•
Filing: 1965-09-29
•
Granted: 1967-02-14
•
Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Leonard U Rastrelli
- 👤 Eugene L Anderson
- 👤 Jarvis D Michie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:32
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
AN IMPROVED STRAIN GAUGE FOR MEASURING VARIATIONS IN MECHANICAL STRAINS IN A DEVICE TO BE TESTED COMPRIS-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |