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US3081620A
Expired / Lapsed
US
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Instrument casement leak testing device
Assignee: Individual
•
Filing: 1960-07-19
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Granted: 1963-03-19
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Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 Glass Jerrold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:06
CPC Classifications
G; G04; G04D; G04D7/00; G04D7/006; G04D7/007; G01; G01M; G01M3/00; G01M3/02; G01M3/04
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |