US3340668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and method of hermetically sealing a package
Assignee: Primerica Inc
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Filing: 1964-09-28
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Granted: 1967-09-12
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Bofinger Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:19
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/02; B65B31/022; B65B7/00; B65B7/16; B65B7/28; B65B7/2842
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF SEALING A PACKAGE COMPRISING THE STEPS OF: PLACING A FIRST AND SECOND PACKAGE ELEMENT ON A TABLE IN SUPERIMPOSED RELATION; FORMING ON AIR-TIGHT VACUUM CHAMBER FOR SAID PACKAGE ELEMENTS OF TWO RELATIVELY MOVABLE SEALING MEMBERS LOCATED ON OPPOSITE SIDES OF SAID TABLE; COMMUNICATING A VACUUM SOURCE TO SAID CHAMBER; FORCING SAID CONTAINER PACKAGE ELEMENTS INTO SEALING ENGAGEMENT BY ONE OF SAID RELATIVELY MOVABLE SEALING MEMBERS WHILE SAID VACUUM CHAMBER IS IN COMMUNICATION WITH SAID VACUUM SOURCE; AND REMOVING SAID PACKAGE FROM SAID VACUUM CHAMBER AFTER DISCONTINUING SAID VACUUM.
Claim 2
Independent Claim
91 words
A METHOD OF SEALING A PACKAGE COMPRISING THE STEPS OF: PLACING A FIRST AND SECOND PACKAGE ELEMENT ON A TABLE IN SUPERIMPOSED RELATION; FORMING ON AIR-TIGHT VACUUM CHAMBER FOR SAID PACKAGE ELEMENTS OF TWO RELATIVELY MOVABLE SEALING MEMBERS LOCATED ON OPPOSITE SIDES OF SAID TABLE; COMMUNICATING A VACUUM SOURCE TO SAID CHAMBER; FORCING SAID CONTAINER PACKAGE ELEMENTS INTO SEALING ENGAGEMENT BY ONE OF SAID RELATIVELY MOVABLE SEALING MEMBERS WHILE SAID VACUUM CHAMBER IS IN COMMUNICATION WITH SAID VACUUM SOURCE; AND REMOVING SAID PACKAGE FROM SAID VACUUM CHAMBER AFTER DISCONTINUING SAID VACUUM.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |