Patent US3343404A successfully refreshed from Google Patents.
US3343404A
Expired / Lapsed
US
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Non-destructive quick leak tester
Assignee: McDonnell Douglas Corp
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Filing: 1965-02-10
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Granted: 1967-09-26
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Rosa William A La
- 👤 James A Sargeant
- 👤 Edgar P Troeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:37
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/36; G01M3/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A NON-DESTRUCTIVE QUICK LEAK TESTER COMPRISING: A VARIABLE VOLUME CABINET WITHIN WHICH A PACKAGE UNDER TEST MAY BE PLACED, SAID CABINET HAVING A ROOF THEREON THAT MAY BE VERTICALLY ADJUSTABLY TO VARY THE VOLUME WITHIN SAID CABINET; MEANS FOR ADJUSTING SAID ROOF VERTICALLY TO VARY THE VOLUME WITHIN SAID CABINET AND TO BRING SAID ROOD INTO A PREDETERMINED VERTICAL RELATIONSHIP WITH SAID PACKAGE; A SENSING DEVICE MOUNTED UNDER SAID ROOF FOR ESTABLISHING SAID PREDETERMINED VERTICAL RELATIONSHIP OF SAID ROOF WITH SAID PACKAGE;
Claim 2
Dependent Claim
82 words
A NON-DESTRUCTIVE QUICK LEAK TESTER COMPRISING: A VARIABLE VOLUME CABINET WITHIN WHICH A PACKAGE UNDER TEST MAY BE PLACED, SAID CABINET HAVING A ROOF THEREON THAT MAY BE VERTICALLY ADJUSTABLY TO VARY THE VOLUME WITHIN SAID CABINET; MEANS FOR ADJUSTING SAID ROOF VERTICALLY TO VARY THE VOLUME WITHIN SAID CABINET AND TO BRING SAID ROOD INTO A PREDETERMINED VERTICAL RELATIONSHIP WITH SAID PACKAGE; A SENSING DEVICE MOUNTED UNDER SAID ROOF FOR ESTABLISHING SAID PREDETERMINED VERTICAL RELATIONSHIP OF SAID ROOF WITH SAID PACKAGE;
References Cited (Backward Citations)
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US2339639A
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US2391354A
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US2453338A
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US2821951A
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US3117441A
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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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |