US3089603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum flasks
Assignee: Individual
•
Filing: 1959-11-20
•
Granted: 1963-05-14
•
Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Leslie-Smith Laurance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:23
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A VACUUM FLAKE ASSEMBLY COMPRISING A VACUUM BOTTLE, A CASING HOUSING THE SAID BOTTLE, A POURING LIP MEMBER SURROUNDING THE MOUTH OF THE BOTTLE AND LOCATING THE BOTTLE IN THE CASING, AN UPSTANDING CYLINDRICAL PORTION ON SAID POURING LIP MEMBER EXTENDING UPWARDLY FROM THE MOUTH OF THE BOTTLE, A SCREW THREAD ON SAID CYLINDRICAL PORTION, A POURING LIP DEFINED BY THE OPEN UPPER END OF SAID CYLINDRICAL PORTION, A STOPPER, A DEPENDING BUNG PORTION OF SAID STOPPER FOR SEALINGLY ENGAGING IN THE MOUTH OF THE BOTTLE, A SCREW THREAD ON SAID STOPPER ENGAGEABLE WITH THE SCREW THREAD ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER FOR RELEASABLY SECURING THE STOPPER WITH ITS BUG PORTION ENGAGED IN THE MOUTH OF THE BOTTLE, AND MEANS SEPARATE FROM SAID SCREW THREADS PROVIDING A SECONDARY SEAL FOR THE CONTENTS OF THE BOTTLE, THE SAID SECONDARY SEALING MEANS COMPRISING A PAIR OF INCLINED SURFACES, EACH OF SUBSTANTIAL LENGTH ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER AND INCLINED SURFACES ON THE STOPPER WHICH MATCH THE RESPECTIVE INCLINED SURFACES ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER OVER SUBSTANTIALLY THE FULL LENGTH THEREOF, AND WHICH WEDGINGLY ENGAGE THE RESPECTIVE INCLINED SURFACES ON SAID CYLINDRICAL PORTION WHEN THE STOPPER IS SCREWED ON TO THE POURING LIP MEMBER TO CAUSE THE SECONDARY SEAL TO HAVE SUBSTANTIAL WIDTH.
Claim 2
Dependent Claim
222 words
A VACUUM FLAKE ASSEMBLY COMPRISING A VACUUM BOTTLE, A CASING HOUSING THE SAID BOTTLE, A POURING LIP MEMBER SURROUNDING THE MOUTH OF THE BOTTLE AND LOCATING THE BOTTLE IN THE CASING, AN UPSTANDING CYLINDRICAL PORTION ON SAID POURING LIP MEMBER EXTENDING UPWARDLY FROM THE MOUTH OF THE BOTTLE, A SCREW THREAD ON SAID CYLINDRICAL PORTION, A POURING LIP DEFINED BY THE OPEN UPPER END OF SAID CYLINDRICAL PORTION, A STOPPER, A DEPENDING BUNG PORTION OF SAID STOPPER FOR SEALINGLY ENGAGING IN THE MOUTH OF THE BOTTLE, A SCREW THREAD ON SAID STOPPER ENGAGEABLE WITH THE SCREW THREAD ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER FOR RELEASABLY SECURING THE STOPPER WITH ITS BUG PORTION ENGAGED IN THE MOUTH OF THE BOTTLE, AND MEANS SEPARATE FROM SAID SCREW THREADS PROVIDING A SECONDARY SEAL FOR THE CONTENTS OF THE BOTTLE, THE SAID SECONDARY SEALING MEANS COMPRISING A PAIR OF INCLINED SURFACES, EACH OF SUBSTANTIAL LENGTH ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER AND INCLINED SURFACES ON THE STOPPER WHICH MATCH THE RESPECTIVE INCLINED SURFACES ON THE CYLINDRICAL PORTION OF THE POURING LIP MEMBER OVER SUBSTANTIALLY THE FULL LENGTH THEREOF, AND WHICH WEDGINGLY ENGAGE THE RESPECTIVE INCLINED SURFACES ON SAID CYLINDRICAL PORTION WHEN THE STOPPER IS SCREWED ON TO THE POURING LIP MEMBER TO CAUSE THE SECONDARY SEAL TO HAVE SUBSTANTIAL WIDTH.
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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |