Patent US2490254A successfully refreshed from Google Patents.
US2490254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pecking hammer
Assignee: Individual
•
Filing: 1947-11-17
•
Granted: 1949-12-06
•
Expires: 1967-11-17
Abstract
No abstract record available.
Inventors
- 👤 Roy E Casazza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:50
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/06; B21D1/065; Y; Y10; Y10S; Y10S72/00; Y10S72/705
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1765372A
Cited
GB327824A
Cited
US1934979A
Cited
US1982667A
Cited
US2054248A
Cited
US2004459A
Cited
US2320074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |