US2687966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry molding material
Assignee: Fairbanks Morse and Co
•
Filing: 1951-12-21
•
Granted: 1954-08-31
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Howard W Miner
- 👤 Edward J Rock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:50
CPC Classifications
B; B22; B22C; B22C1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US821718A
Cited
US1053787A
Cited
US1571014A
Cited
US1867382A
Cited
US1975399A
Cited
US2507082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |