US2524584A
Expired / Lapsed
US
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Method of forming containers
Assignee: Shellmar Products Corp
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Filing: 1949-10-18
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Granted: 1950-10-03
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Expires: 1969-10-18
Abstract
No abstract record available.
Inventors
- 👤 William J Zehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/08; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C67/00; B29C67/0044; B29C37/00; B29C37/0053; B29C37/0057; B31B; B31B50/00; B31B50/25; Y; Y10; Y10S; Y10S229/00; Y10S229/93; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |