US2771872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sawing plastic masses
Assignee: DUROX INTERNATIONAL SA
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Filing: 1954-11-15
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Granted: 1956-11-27
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Bergling Charles Gunnar Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:09
CPC Classifications
B; B28; B28B; B28B17/00; B28B17/0036; B23; B23D; B23D61/00; B23D61/18; B23D61/185; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9292
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) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |