Patent US2932385A successfully refreshed from Google Patents.
US2932385A
Expired / Lapsed
US
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Multicompartment package with internal breaker strip
Assignee: 3M Co
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Filing: 1956-03-05
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Granted: 1960-04-12
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Bollmeier Emil Wayne
- 👤 Leo F Vokaty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:04
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/12; B65D81/00; B65D81/32; B65D81/3261; B65D81/3266; Y; Y10; Y10T; Y10T156/00; Y10T156/11; Y10T156/1168
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A PACKAGE COMPRISING A HERMETICALLY CLOSED ENVELOPE OF THERMOPLASTIC POLYMER FILM ENCLOSING A HOLLOW BREAKER STRIP OF A THERMOPLASTIC POLYMER MATERIAL HAVING LESS INTERNAL STRENGTH THAN SAID FILM ADHERENTLY HEAT SEALED TO SAID FILM ALONG A NARROW LINE AROUND THE ENTIRE INTERIOR CROSS-SECTION OF SAID ENVELOPE, AND ITSELF PROVIDING A HERMETICALLY CLOSED ENVELOPE INTERIORLY OF SAID PACKAGE.
Claim 2
Dependent Claim
57 words
A PACKAGE COMPRISING A HERMETICALLY CLOSED ENVELOPE OF THERMOPLASTIC POLYMER FILM ENCLOSING A HOLLOW BREAKER STRIP OF A THERMOPLASTIC POLYMER MATERIAL HAVING LESS INTERNAL STRENGTH THAN SAID FILM ADHERENTLY HEAT SEALED TO SAID FILM ALONG A NARROW LINE AROUND THE ENTIRE INTERIOR CROSS-SECTION OF SAID ENVELOPE, AND ITSELF PROVIDING A HERMETICALLY CLOSED ENVELOPE INTERIORLY OF SAID PACKAGE.
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) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |