Patent US6276963B1 successfully refreshed from Google Patents.
US3484415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of finely divided polyamide powders
Assignee: Dr Plate Chemische Fabrik GmbH
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Filing: 1967-04-25
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Granted: 1969-12-16
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Expires: 1987-04-25
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm August Sahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:14
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16; C08G69/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2907755A
Cited
US3017391A
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US3061592A
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US3298977A
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GB1027336A
Cited
US3325455A
Cited
US3394112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |