Patent US3485364A successfully refreshed from Google Patents.
US3485364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Classification of solid polymer pellets
Assignee: Dart Industries Inc
•
Filing: 1967-02-09
•
Granted: 1969-12-23
•
Expires: 1987-02-09
Abstract
No abstract record available.
Inventors
- 👤 Robert E Burrough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:18
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/10; B07; B07B; B07B1/00; B07B1/28; B07B1/286
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |