US3029472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preform injection foam molder
Assignee: Dow Chemical Co
•
Filing: 1959-11-18
•
Granted: 1962-04-17
•
Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:06
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/42; B29C44/428; Y; Y10; Y10S; Y10S264/00; Y10S264/13; Y10S264/83
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1939831A
Cited
US2354260A
Cited
US2398318A
Cited
US2469130A
Cited
US2530289A
Cited
US2781547A
Cited
US2789313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |