US3572096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for inspecting sealed packages for leaks
Assignee: Boeing North American Inc
•
Filing: 1968-12-23
•
Granted: 1971-03-23
•
Expires: 1988-12-23
Abstract
Abstract A METHOD OF AND APPARATUS FOR INSPECTING SEALED PACKAGES FOR LEAKS WHERE A SEALED PACKAGE IN AN IMPROVED INSPECTION FIXTURE IS EXPOSED TO A RELATIVELY LOW-PRESSURE CARRIER GAS FOR A SHORT TIME PERIOD THAT RESULTS IN A READOUT DEVELOPED BY A DETECTOR READOUT INSTRUMENT WHICH DISTINGUISHES GROSS, MEDIUM, AND FINE PACKAGE LEAKS.
Inventors
- 👤 Raymond A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:53
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/20; G01M3/22; G01M3/226; G01M3/229
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |