US2356526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Riveting machine
Assignee: Individual
•
Filing: 1941-11-12
•
Granted: 1944-08-22
•
Expires: 1961-11-12
Abstract
No abstract record available.
Inventors
- 👤 Mayer Friedrich
- 👤 Wopper Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:27
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/10; B21J15/14; B21J15/02; B21J15/30; B21J15/32; B21J15/36; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T29/5118
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-08-22 | 1948-02-21 | 1948-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-08-22 | 1952-02-21 | 1952-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-08-22 | 1956-02-21 | 1956-08-22 | $7700.00 | Window Closed / Lapsed |