US3241774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of comminuting thermoplastic materials
Assignee: Individual
•
Filing: 1963-08-06
•
Granted: 1966-03-22
•
Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jackering Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:18
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/14; B29; B29B; B29B13/00; B29B13/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCESS FOR FINELY GRINDING THERMOPLASTIC SYNTHETIC MATERIALS, COMPRISING GRINDING A PRELIMINARILY BROKEN-UP MATERIAL WHILE MIXING IT WITH A GASEOUS CURRENT IN AN AMOUNT OF AT LEAST 30,000 PARTS BY VOLUME OF THE GAS TO ONE PART BY VOLUME OF THE MATERIAL, THE DURATION OF THE GRINDING BEING AT MST 1.2 SECONDS.
Claim 2
Dependent Claim
52 words
A PROCESS FOR FINELY GRINDING THERMOPLASTIC SYNTHETIC MATERIALS, COMPRISING GRINDING A PRELIMINARILY BROKEN-UP MATERIAL WHILE MIXING IT WITH A GASEOUS CURRENT IN AN AMOUNT OF AT LEAST 30,000 PARTS BY VOLUME OF THE GAS TO ONE PART BY VOLUME OF THE MATERIAL, THE DURATION OF THE GRINDING BEING AT MST 1.2 SECONDS.
References Cited (Backward Citations)
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Cited
US2148447A
Cited
US2601953A
Cited
US2726045A
Cited
US3162382A
Cited
US3155326A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |