US2722339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure assembly
Assignee: Blaw Knox Co
•
Filing: 1951-11-15
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Granted: 1955-11-01
•
Expires: 1971-11-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Saxon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:13
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/582; B65D90/585; B01; B01F; B01F35/00; B01F35/45; B01F35/453; B01F35/4531; B65D2590/00; B65D2590/54; B65D2590/66; B65D2590/666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US49170A
Cited
US439040A
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US666301A
Cited
GB190225496A
Cited
FR631548A
Cited
US1956665A
Cited
US2176306A
Cited
US2386293A
Cited
US2556354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |