Patent US5567117A successfully refreshed from Google Patents.
Patent US2429146A successfully refreshed from Google Patents.
US2429146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold and core structure
Assignee: LEW W CLEMINSON
•
Filing: 1942-12-11
•
Granted: 1947-10-14
•
Expires: 1962-12-11
Abstract
No abstract record available.
Inventors
- 👤 Wessel Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:16
CPC Classifications
B; B22; B22D; B22D23/00; B22D23/006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2190496A
Cited
US319515A
Cited
US443656A
Cited
US114488A
Cited
US700606A
Cited
US695090A
Cited
US702194A
Cited
US1138443A
Cited
US1498971A
Cited
US1534710A
Cited
US1780514A
Cited
US1822285A
Cited
US2045556A
Cited
US1992332A
Cited
US2195960A
Cited
US2132739A
Cited
US2299016A
Cited
US2287848A
Cited
US2309608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |