Patent US4909974A successfully refreshed from Google Patents.
Patent US3547682A successfully refreshed from Google Patents.
US3547682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite polyolefin extrusion coating of substrates
Assignee: Hercules LLC
•
Filing: 1968-03-15
•
Granted: 1970-12-15
•
Expires: 1988-03-15
Abstract
No abstract record available.
Inventors
- 👤 Louis F Erb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/26; B05D1/265; B29; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/18; B29C48/21; B29C48/25; B29C48/30; B29C48/305; B29C48/307; B32; B32B; B32B27/00; B05D2252/00; B05D2252/02; B05D7/00; B05D7/50; B05D7/56; B05D7/58; B05D7/588; B05D7/5883; B05D7/5885
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |