US2713435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support member for vacuum jacketed flasks
Assignee: BRITISH VACUUM FLASK Co L
•
Filing: 1951-10-17
•
Granted: 1955-07-19
•
Expires: 1971-10-17
Abstract
No abstract record available.
Inventors
- 👤 Venis Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:32
CPC Classifications
B; B65; B65D; B65D23/00; B65D23/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US922364A
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US1063351A
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US1121349A
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GB304984A
Cited
US1855039A
Cited
US1969486A
Cited
GB455426A
Cited
US2077215A
Cited
US2115654A
Cited
US2410179A
Cited
US2466875A
Cited
US2487400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |