US2863343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counterblow hammers
Assignee: Schloemann AG
•
Filing: 1955-04-11
•
Granted: 1958-12-09
•
Expires: 1975-04-11
Abstract
No abstract record available.
Inventors
- 👤 Steinfort Josef
- 👤 Kreutz Eugen
- 👤 Holstein Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:26
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/20; B21J7/22; B21J7/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1130884A
Cited
GB467193A
Cited
GB467626A
Cited
DE897945C
Cited
US2345563A
Cited
DE854003C
Cited
US2449647A
Cited
US2695008A
Cited
US2655002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |