US2901188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for subdividing solids
Assignee: Spinnfaser AG
•
Filing: 1956-08-07
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Granted: 1959-08-25
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Expires: 1976-08-07
Abstract
No abstract record available.
Inventors
- 👤 Welfers Egidius
- 👤 Hose Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:45
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/32; B; B01; B01F; B01F21/00; B01F21/15; B01F21/20; B01F25/00; B01F25/20; B01F25/25; B01F29/00; B01F29/60; B01F29/61; B01F29/63; B01F33/00; B01F33/80; B01F33/83; B01F33/836; B01F33/8361; B01F33/83612; B01F35/00; B01F35/71; B01F35/712; B01F35/717; B01F35/7176; B01F35/7179; B01F35/71805; B01F35/75; B01F35/754; B01F35/7547; B02; B02C; B02C17/00; B02C17/02; D01; D01D; D01D1/00; D01D1/06; D01D1/065; B01F25/50
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |