US2541064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of controlling the diameter and wall thickness of vinylidene chloride polymerfilm tubes
Assignee: Dow Chemical Co
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Filing: 1948-08-11
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Granted: 1951-02-13
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Expires: 1968-08-11
Abstract
No abstract record available.
Inventors
- 👤 Carroll R Irons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:47
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/90; B29C48/901; B29C48/902; B29C48/03; B29C48/07; B29C48/08; B29C48/09; B29C48/10; B29C48/911; B29C48/9115; B29C48/912; B29C48/919; B29C35/00; B29C35/16; B29C2035/1616; B29C48/001; B29C48/0018; B29C48/0019; B29K; B29K2027/00; B29K2027/08; B29K2995/00; B29K2995/0037; B29K2995/0041
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |