US3117441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for determining vacuum conditions in packaging
Assignee: Individual
•
Filing: 1961-05-16
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Granted: 1964-01-14
•
Expires: 1981-05-16
Abstract
No abstract record available.
Inventors
- 👤 Zimmerman Elmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:28
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/36; G01M3/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE METHOD OF DETERMINING THE VACUUM CONDITION WITHIN A PACKAGE HAVING A SEALED FLEXIBLE ENCLOSURE, COMPRISING THE STEPS OF: DISPOSING THE ENCLOSURE WITHIN A CHAMBER; REDUCING THE PRESSURE WITHIN THE CHAMBER TO SUBSTANTIALLY BELOW THE PRESSURE WITHIN THE PACKAGE TO DISTENT THE ENCLOSURE; INCREASING THE PRESSURE TO PERMIT A RETRACTION OF THE ENCLOSURE TOWARD THE UNDISTENDED ARRANGEMENT; AND DETERMINING THE PRESSURE WITHIN THE CHAMBER WHEN THE ENCLOSURE IS IN A PRESELECTED INCOMPLETELY RETRACTED ARRANGEMENT.
Claim 2
Independent Claim
74 words
THE METHOD OF DETERMINING THE VACUUM CONDITION WITHIN A PACKAGE HAVING A SEALED FLEXIBLE ENCLOSURE, COMPRISING THE STEPS OF: DISPOSING THE ENCLOSURE WITHIN A CHAMBER; REDUCING THE PRESSURE WITHIN THE CHAMBER TO SUBSTANTIALLY BELOW THE PRESSURE WITHIN THE PACKAGE TO DISTENT THE ENCLOSURE; INCREASING THE PRESSURE TO PERMIT A RETRACTION OF THE ENCLOSURE TOWARD THE UNDISTENDED ARRANGEMENT; AND DETERMINING THE PRESSURE WITHIN THE CHAMBER WHEN THE ENCLOSURE IS IN A PRESELECTED INCOMPLETELY RETRACTED ARRANGEMENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |