US2815898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stiffening panels for flexible walled containers
Assignee: Bemis Brothers Bag Co
•
Filing: 1952-01-12
•
Granted: 1957-12-10
•
Expires: 1972-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jay D Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |