US3473599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of metal castings
Assignee: Doulton and Co Ltd
•
Filing: 1966-01-13
•
Granted: 1969-10-21
•
Expires: 1986-01-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:34
CPC Classifications
B; B22; B22D; B22D21/00; B22D21/002; B22D21/007; B22C; B22C1/00; B22C1/16; B22C1/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1544929A
Cited
US2086653A
Cited
US2023957A
Cited
US2181004A
Cited
US2116207A
Cited
US2479504A
Cited
US2368296A
Cited
US2522548A
Cited
US2618530A
Cited
US2680890A
Cited
US2879169A
Cited
US2895838A
Cited
US3356129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |