Patent US5391174A successfully refreshed from Google Patents.
US3059296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic body
Assignee: Glasrock Products Inc
•
Filing: 1957-06-04
•
Granted: 1962-10-23
•
Expires: 1977-06-04
Abstract
No abstract record available.
Inventors
- 👤 North John Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:26
CPC Classifications
B; B22; B22C; B22C9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1918089A
Cited
US1901427A
Cited
GB575734A
Cited
US2517902A
Cited
GB606119A
Cited
US2521839A
Cited
FR1039893A
Cited
US2795022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |