Patent US3082895A successfully refreshed from Google Patents.
US3082895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum flasks
Assignee: Individual
•
Filing: 1957-12-31
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Granted: 1963-03-26
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Leslie-Smith Laurance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:18
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
STOPPER MEANS FOR A VACUUM INSULATED FLASK HAVING A NECK PROVIDED WITH AN OPEN MOUTH AT THE END THEREOF, AND A CASING ENCLOSING THE SAID FLASK, THE SAID STOPPER MEANS INCLUDING AN ANNULAR POURING LIP MEMBER ADAPTED TO SURROUND THE NECK OF THE FLASK, MEANS ON SAID POURING LIP MEMBER FOR ENGAGING THE CASING SURROUNDING THE FLASK, RESILIENT MEANS ON SAID POURING LIP MEMBER FOR SEALINGLY ENGAGING THE INNER SURFACE OF THE MOUTH OF THE FLASK, A STOPPER ENGAGEABLE WITH SAID POURING LIP MEMBER FOR CLOSING THE MOUTH OF THE FLASK, AND COOPERATING SCREW SURFACES ON SAID STOPPER AND SAID POURING LIP MEMBER FOR RETAINING THE STOPPER ENGAGED ON THE POURING LIP MEMBER.
Claim 2
Dependent Claim
113 words
STOPPER MEANS FOR A VACUUM INSULATED FLASK HAVING A NECK PROVIDED WITH AN OPEN MOUTH AT THE END THEREOF, AND A CASING ENCLOSING THE SAID FLASK, THE SAID STOPPER MEANS INCLUDING AN ANNULAR POURING LIP MEMBER ADAPTED TO SURROUND THE NECK OF THE FLASK, MEANS ON SAID POURING LIP MEMBER FOR ENGAGING THE CASING SURROUNDING THE FLASK, RESILIENT MEANS ON SAID POURING LIP MEMBER FOR SEALINGLY ENGAGING THE INNER SURFACE OF THE MOUTH OF THE FLASK, A STOPPER ENGAGEABLE WITH SAID POURING LIP MEMBER FOR CLOSING THE MOUTH OF THE FLASK, AND COOPERATING SCREW SURFACES ON SAID STOPPER AND SAID POURING LIP MEMBER FOR RETAINING THE STOPPER ENGAGED ON THE POURING LIP MEMBER.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |