US2850775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for assembling foundry molds
Assignee: Combustion Engineering Inc
•
Filing: 1955-05-31
•
Granted: 1958-09-09
•
Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel C Northington
- 👤 John A Lasater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
B; B22; B22D; B22D33/00; B22D33/04; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/534; Y10T29/53404
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2112830A
Cited
US1570658A
Cited
US1512721A
Cited
GB252668A
Cited
US1722371A
Cited
US1765021A
Cited
US1757226A
Cited
US1879393A
Cited
US2049967A
Cited
US2229492A
Cited
GB615205A
Cited
US2325501A
Cited
US2396936A
Cited
US2438218A
Cited
US2424252A
Cited
US2545799A
Cited
US2525572A
Cited
US2624084A
Cited
US2627335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |