US3298575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable dispensing container
Assignee: Matrix Laboratories Inc
•
Filing: 1965-04-19
•
Granted: 1967-01-17
•
Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Larsen Norman Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:27
CPC Classifications
B; B65; B65D; B65D83/00; B65D25/00; B65D25/38; B65D25/40; B65D25/42; B65D25/44; B67; B67D; B67D1/00; B67D1/04; B67D1/0412; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
AN ARTICLE OF MANUFACTURE COMPRISING A LIGHTWEIGHT NON-CORROSIVE CONTAINER, MEANS SUPPORTED BY AND AT LEAST PARTIALLY DISPOSED WITHIN SAID CONTAINER FOR INTRODUCING AN INERT OXYGEN-FREE GAS INTO SAID CONTAINER FOR PRESSURIZING SPACE ABOVE A LIQUID ADAPTED TO BE DISPOSED IN THE CONTAINER, AND A SELECTIVELY OPERABLE DISCHARGE MEANS SUPPORTED BY SAID CONTAINER, WHEREBY THE PRESSURE OF AN OXYGEN-FREE GAS MAY ASSIST IN DISCHARGING A LIQUID FROM SAID CONTAINER BY WAY OF SAID DISCHARGE MEANS, AND SAID MEANS FOR INTRODUCING GAS INTO SAID CONTAINER INCLUDING A SEMI-PERMEABLE ENVELOPE WITHIN SAID CONTAINER, SAID ENVELOPE CONTAINING REACTANTS WITH MOISTURE TO CREATE A REVERSIBLE REACTION RESULTING IN A GAS CAPABLE OF PASSING THROUGH THE ENVELOPE.
Claim 2
Dependent Claim
111 words
AN ARTICLE OF MANUFACTURE COMPRISING A LIGHTWEIGHT NON-CORROSIVE CONTAINER, MEANS SUPPORTED BY AND AT LEAST PARTIALLY DISPOSED WITHIN SAID CONTAINER FOR INTRODUCING AN INERT OXYGEN-FREE GAS INTO SAID CONTAINER FOR PRESSURIZING SPACE ABOVE A LIQUID ADAPTED TO BE DISPOSED IN THE CONTAINER, AND A SELECTIVELY OPERABLE DISCHARGE MEANS SUPPORTED BY SAID CONTAINER, WHEREBY THE PRESSURE OF AN OXYGEN-FREE GAS MAY ASSIST IN DISCHARGING A LIQUID FROM SAID CONTAINER BY WAY OF SAID DISCHARGE MEANS, AND SAID MEANS FOR INTRODUCING GAS INTO SAID CONTAINER INCLUDING A SEMI-PERMEABLE ENVELOPE WITHIN SAID CONTAINER, SAID ENVELOPE CONTAINING REACTANTS WITH MOISTURE TO CREATE A REVERSIBLE REACTION RESULTING IN A GAS CAPABLE OF PASSING THROUGH THE ENVELOPE.
References Cited (Backward Citations)
USRE24718E
Cited
US2514773A
Cited
US2794579A
Cited
US2950846A
Cited
US2900109A
Cited
US3103299A
Cited
US3053422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |