US2272920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming reinforcing beads on conical paper cups
Assignee: PAPER CONTAINER Manufacturing Co
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Filing: 1940-02-23
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Granted: 1942-02-10
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Expires: 1960-02-23
Abstract
No abstract record available.
Inventors
- 👤 Merta George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:38
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/008; B31F1/0087; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/306; B29K; B29K2711/00; B29K2711/12; B31B; B31B50/00; B31B50/59; B31B50/594
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-02-09 | 1945-08-11 | 1946-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-02-09 | 1949-08-11 | 1950-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-02-09 | 1953-08-11 | 1954-02-10 | $7700.00 | Window Closed / Lapsed |