Patent US3400331A successfully refreshed from Google Patents.
US3400331A
Expired / Lapsed
US
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Gaging device including a probe having a plurality of concentric and coextensive electrodes
Assignee: Pratt and Whitney Co Inc
•
Filing: 1965-01-18
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Granted: 1968-09-03
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Expires: 1985-01-18
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/02; G01B7/023; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49004
Claims Analysis
Total Claims: 0
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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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |