US2863206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for prestressing reinforcing wires for reinforced concrete parts in mass production
Assignee: Individual
•
Filing: 1953-03-11
•
Granted: 1958-12-09
•
Expires: 1973-03-11
Abstract
No abstract record available.
Inventors
- 👤 Kirchner Ignatz Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:40
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B23/04; B28B23/043
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1920716A
Cited
US780321A
Cited
US791041A
Cited
US1445724A
Cited
GB393576A
Cited
FR889703A
Cited
US2394228A
Cited
US2511761A
Cited
FR998462A
Cited
FR1001634A
Cited
GB651462A
Cited
US2607099A
Cited
GB674780A
Cited
AT171519B
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 |