US2922175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuyere punches and like machines
Assignee: Individual
•
Filing: 1956-12-11
•
Granted: 1960-01-26
•
Expires: 1976-12-11
Abstract
No abstract record available.
Inventors
- 👤 Villiers Willem Johannes De
- 👤 Bruckman Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:37
CPC Classifications
F; F27; F27D; F27D25/00; F27D25/001; F27D25/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US507671A
Cited
US637809A
Cited
US1819008A
Cited
US2008795A
Cited
US1999640A
Cited
US2182014A
Cited
US2344758A
Cited
US2429581A
Cited
US2640955A
Cited
US2664161A
Cited
US2686280A
Cited
US2696979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |