Patent US3261458A successfully refreshed from Google Patents.
US3261458A
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Assignee: LAGUNA SCIENT IND
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Filing: 1965-02-19
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Granted: 1966-07-19
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Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Howard A Nibecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:07
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/3261; B65D81/3266; B65D77/00; B65D77/22; B65D2577/00; B65D2577/10; B65D2577/20; B65D2577/2025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN ARTICLE OF MANUFACTURE COMPRISING (A) A FLEXIBLE LAMINATE MEMBRANE CONSISTING OF A FIRST LAMINA OF FLEXIBLE PLASTIC MATERIAL HAVING THE PROPERTIES OF FORM RETENTION AND MOLDABILITY AND A SECOND LAMINA OF FLEXIBLE POLYVINYLFLUORIDE, (B) THE LAMINATE BEING MOLDED TO FORM A CENTRAL FIRST RECEPTACLE AND AN ANNULAR SECOND RECEPTACLE SEPARATED FROM THE CENTRAL RECEPTACLE BY A FIRST ANNULAR INTERVENING WALL AND BOUNDED ON THE OUTSIDE CIRCUMFERENCE BY A SECOND ANNULAR OUTER WALL, (C) A BODY OF FIRST MATERIAL IN THE FIRST RECEPTACLE, (D) A BODY OF A SECOND AND DIFFERENT MATERIAL IN THE SECOND RECEPTACLE, THE MEMBRANE BEING DEFORMABLE BY DEPRESSION OF THE FIRST RECEPTACLE TO DISTEND THE FIRST ANNULAR WALL SO AS TO MERGE THE FIRST AND SECOND RECEPTACLES AND ENABLE THE FIRST AND SECOND TO BE MIXED, AND (E) AT LEAST ONE OF THE MATERIALS INCLUDING A COMPONENT SELECTED FROM THE CLASS CONSISTING OF AMINES AND AMIDES, THE VAPORS OF WHICH ARE ABLE TO PENETRATE THE FIRST BUT NOT THE SECOND OF THE LAMINA.
Claim 2
Dependent Claim
167 words
AN ARTICLE OF MANUFACTURE COMPRISING (A) A FLEXIBLE LAMINATE MEMBRANE CONSISTING OF A FIRST LAMINA OF FLEXIBLE PLASTIC MATERIAL HAVING THE PROPERTIES OF FORM RETENTION AND MOLDABILITY AND A SECOND LAMINA OF FLEXIBLE POLYVINYLFLUORIDE, (B) THE LAMINATE BEING MOLDED TO FORM A CENTRAL FIRST RECEPTACLE AND AN ANNULAR SECOND RECEPTACLE SEPARATED FROM THE CENTRAL RECEPTACLE BY A FIRST ANNULAR INTERVENING WALL AND BOUNDED ON THE OUTSIDE CIRCUMFERENCE BY A SECOND ANNULAR OUTER WALL, (C) A BODY OF FIRST MATERIAL IN THE FIRST RECEPTACLE, (D) A BODY OF A SECOND AND DIFFERENT MATERIAL IN THE SECOND RECEPTACLE, THE MEMBRANE BEING DEFORMABLE BY DEPRESSION OF THE FIRST RECEPTACLE TO DISTEND THE FIRST ANNULAR WALL SO AS TO MERGE THE FIRST AND SECOND RECEPTACLES AND ENABLE THE FIRST AND SECOND TO BE MIXED, AND (E) AT LEAST ONE OF THE MATERIALS INCLUDING A COMPONENT SELECTED FROM THE CLASS CONSISTING OF AMINES AND AMIDES, THE VAPORS OF WHICH ARE ABLE TO PENETRATE THE FIRST BUT NOT THE SECOND OF THE LAMINA.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |