US2960725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing thermoplastic tapes of varied cross-sections
Assignee: Dow Chemical Co
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Filing: 1957-03-21
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Granted: 1960-11-22
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Expires: 1977-03-21
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Lefevre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/426; B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29C; B29C53/00; B29C53/02; B29C53/04; B29C53/36; B29C53/38; B29C53/48; B29C67/00; B29C67/20; B29D; B29D7/00; C; C08; C08J; C08J9/00; C08J9/26; B29C35/00; B29C35/02; B29C35/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1589898A
Cited
US2858186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |