US2776450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal casting apparatus
Assignee: H D BOGGS CO Ltd
•
Filing: 1950-12-11
•
Granted: 1957-01-08
•
Expires: 1970-12-11
Abstract
No abstract record available.
Inventors
- 👤 Herbert D Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:09
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/34; B29C33/36; B22; B22D; B22D13/00; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/22; B28B21/30; B28B21/32; B29C41/00; B29C41/02; B29C41/04; B29C41/042; Y; Y10; Y10S; Y10S425/00; Y10S425/20
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |