US2232640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making articles from heat fusible sheet material
Assignee: PROTEX PRODUCTS Co
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Filing: 1938-12-23
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Granted: 1941-02-18
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Expires: 1958-12-23
Abstract
No abstract record available.
Inventors
- 👤 Daniel B Schwartzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:16
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B29C65/00; B29C65/02; B29C65/18; B29C65/74; B29C65/743; B29C66/004; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/71; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91421; B29C66/919; B29L; B29L2031/00; B29L2031/705; B29L2031/7052; B29L2031/712; B29L2031/7128; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/643; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054
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) | 1944-02-18 | 1944-08-19 | 1945-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-18 | 1948-08-19 | 1949-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-18 | 1952-08-19 | 1953-02-18 | $7700.00 | Window Closed / Lapsed |