US2881503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for cutting up plastic and semi-plastic masses
Assignee: DUROX INTERNATIONAL SA
•
Filing: 1956-03-13
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Granted: 1959-04-14
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Expires: 1976-03-13
Abstract
No abstract record available.
Inventors
- 👤 Johnson Carl Olof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
B; B28; B28B; B28B17/00; B28B17/0036; B26; B26F; B26F3/00; B26F3/004; B28B11/00; B28B11/14; B28B11/145; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0591; Y10T83/263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1504645A
Cited
US2092083A
Cited
FR843130A
Cited
US2489784A
Cited
US2696049A
Cited
US2694846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |