US2662638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton
Assignee: Celanese Corp
•
Filing: 1949-08-18
•
Granted: 1953-12-15
•
Expires: 1969-08-18
Abstract
No abstract record available.
Inventors
- 👤 William C Storer
- 👤 Adelbert L Rotruck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/70; B65D71/0088; B65D71/0092; B65D71/0096; B65D2571/00; B65D2571/00006; B65D2571/00037; B65D2571/00111; B65D85/00; B65D85/67; B65D85/675; B65D85/676
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US827124A
Cited
US953828A
Cited
US1916755A
Cited
US2031851A
Cited
GB505735A
Cited
US2358160A
Cited
US2424553A
Cited
US2405535A
Cited
US2489054A
Cited
US2564834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |