Patent US4147633A successfully refreshed from Google Patents.
Patent US3000550A successfully refreshed from Google Patents.
US3000550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve sleeve for bags
Assignee: Georgia-Pacific LLC
•
Filing: 1958-06-04
•
Granted: 1961-09-19
•
Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 Norman K Charlton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:15
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US931886A
Cited
US2102685A
Cited
US2040335A
Cited
US2306538A
Cited
US2378285A
Cited
US2270842A
Cited
US2275505A
Cited
US2392094A
Cited
US2761612A
Cited
FR1115518A
Cited
US2811300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |