US3215319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible dispensing container
Assignee: Individual
•
Filing: 1964-01-02
•
Granted: 1965-11-02
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Laker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:07
CPC Classifications
B; B65; B65D; B65D35/00; B65D35/22; B65D47/00; B65D47/04; B65D47/20; B65D47/2018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A COLLAPSIBLE DISPENSING CONTAINER HAVING A FLEXIBLE WALL DEFINING A COMPARTMENT INSIDE SAID CONTAINER, FLEXIBLE MEANS DISPOSED IN SAID COMPARTMENT AND DIVIDING THE SAME INTO TWO CHAMBERS, ONE OF SAID CHAMBERS CONTAINING AIR AND THE OTHER OF SAID CHAMBERS CONTAINING A PRODUCT, SAID WALL HAVING A FIRST PASSAGE MEANS LEADING TO SAID ONE CHAMBER AND HAVING A SECOND PASSAGE MEANS LEADING TO SAID OTHER CHAMBE, FIRST VALVE MEANS FOR SAID FIRST PASSAGE MEANS, AND SECOND VALVE MEANS FOR SAID SECOND PASSAGE MEANS, SAID FIRST VALVE MEANS TRAPPING AIR IN SAID ONE CHAMBER WHEN SAID CONTAINER IS SQUEEZED WHEREBY THE PRODUCT IN SAID OTHER CHAMBER CAN BE EXUDED OUT THROUGH SAID SECOND PASSAGE MEANS, SAID FIRST VALVE MEANS PERMITTING AIR TO ENTER SAID ONE CHAMBER TO REPLACE THE EXUDED PRODUCT WHEN SAID CONTAINER IS RELEASED WHEREBY THE REBOUND OF SAID FLEXIBLE WALL WILL NOT DRAW AIR INTO SAID OTHER CHAMBER.
Claim 2
Dependent Claim
149 words
A COLLAPSIBLE DISPENSING CONTAINER HAVING A FLEXIBLE WALL DEFINING A COMPARTMENT INSIDE SAID CONTAINER, FLEXIBLE MEANS DISPOSED IN SAID COMPARTMENT AND DIVIDING THE SAME INTO TWO CHAMBERS, ONE OF SAID CHAMBERS CONTAINING AIR AND THE OTHER OF SAID CHAMBERS CONTAINING A PRODUCT, SAID WALL HAVING A FIRST PASSAGE MEANS LEADING TO SAID ONE CHAMBER AND HAVING A SECOND PASSAGE MEANS LEADING TO SAID OTHER CHAMBE, FIRST VALVE MEANS FOR SAID FIRST PASSAGE MEANS, AND SECOND VALVE MEANS FOR SAID SECOND PASSAGE MEANS, SAID FIRST VALVE MEANS TRAPPING AIR IN SAID ONE CHAMBER WHEN SAID CONTAINER IS SQUEEZED WHEREBY THE PRODUCT IN SAID OTHER CHAMBER CAN BE EXUDED OUT THROUGH SAID SECOND PASSAGE MEANS, SAID FIRST VALVE MEANS PERMITTING AIR TO ENTER SAID ONE CHAMBER TO REPLACE THE EXUDED PRODUCT WHEN SAID CONTAINER IS RELEASED WHEREBY THE REBOUND OF SAID FLEXIBLE WALL WILL NOT DRAW AIR INTO SAID OTHER CHAMBER.
References Cited (Backward Citations)
US886984A
Cited
US1925926A
Cited
US2715980A
Cited
US2777612A
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US2761833A
Cited
US3081006A
Cited
US3118572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |