US3488246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast plastic simulated marble building product
Assignee: EIDP Inc
•
Filing: 1966-08-31
•
Granted: 1970-01-06
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Ray Brown Duggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:22
CPC Classifications
B; B44; B44F; B44F9/00; B44F9/04; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US546360A
Cited
US1939045A
Cited
US2145887A
Cited
US2174779A
Cited
US2477170A
Cited
US3396067A
Cited
US3388196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |