US2145636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing treansparent cellulosic tubes
Assignee: RIVERSIDE Co
•
Filing: 1936-03-20
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Granted: 1939-01-31
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Expires: 1956-03-20
Abstract
No abstract record available.
Inventors
- 👤 Schaft Lou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:07
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C53/50; B29C65/48; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/49; B29C66/70; B29C66/71; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81433; B29C66/82; B29C66/822; B29C66/8223; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C2793/00; B29C2793/009; B29C65/24; B29C65/30; B29C65/305; B29K; B29K2001/00
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) | 1942-01-30 | 1942-08-01 | 1943-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-30 | 1946-08-01 | 1947-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-30 | 1950-08-01 | 1951-01-31 | $7700.00 | Window Closed / Lapsed |