US3064849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap for barrel tap opening
Assignee: D & F Engineering Inc
•
Filing: 1958-09-05
•
Granted: 1962-11-20
•
Expires: 1978-09-05
Abstract
No abstract record available.
Inventors
- 👤 Carl W Ferm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:03
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0015; B65D2251/0068; B65D2251/0075
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2006747A
Cited
US2010109A
Cited
US2013527A
Cited
US1994991A
Cited
US1982806A
Cited
US2430035A
Cited
US2533934A
Cited
US2462940A
Cited
US2660761A
Cited
US2829794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |