US2663072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for joining sheet metal or the like
Assignee: Individual
•
Filing: 1949-03-16
•
Granted: 1953-12-22
•
Expires: 1969-03-16
Abstract
No abstract record available.
Inventors
- 👤 Pfistershammer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:43
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; F; F16; F16B; F16B5/00; F16B5/07; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49936; Y10T29/49938; Y10T29/49943; Y10T403/00; Y10T403/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US338877A
Cited
US384118A
Cited
US518767A
Cited
US581414A
Cited
US1034483A
Cited
US2009568A
Cited
US2149918A
Cited
US2251926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |