US1542598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for plugging crucibles
Assignee: Primerica Inc
•
Filing: 1923-01-29
•
Granted: 1925-06-16
•
Expires: 1943-01-29
Abstract
No abstract record available.
Inventors
- 👤 Edward F Begtrup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
B; B22; B22D; B22D41/00; B22D41/14; B22D41/16; C; C21; C21C; C21C7/00; C21C7/04; C21C7/06; Y; Y10; Y10S; Y10S164/00; Y10S164/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-06-15 | 1928-12-15 | 1929-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-06-15 | 1932-12-15 | 1933-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-06-15 | 1936-12-15 | 1937-06-16 | $7700.00 | Window Closed / Lapsed |