US2663451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure plug
Assignee: Individual
•
Filing: 1951-10-10
•
Granted: 1953-12-22
•
Expires: 1971-10-10
Abstract
No abstract record available.
Inventors
- 👤 Chandler P Yarnall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/11; F16L55/1141; B; B65; B65D; B65D39/00; B65D39/0005; B65D39/0023; B65D39/04; B65D2539/00; B65D2539/001; B65D2539/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US424690A
Cited
US427677A
Cited
US560227A
Cited
US1120369A
Cited
US1710363A
Cited
US1946981A
Cited
US2196785A
Cited
US2173843A
Cited
US2265615A
Cited
US2487635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |