US2586479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for piercing and clenching superposed sheets
Assignee: Paper Novelty Manufacturing Co
•
Filing: 1948-06-11
•
Granted: 1952-02-19
•
Expires: 1968-06-11
Abstract
No abstract record available.
Inventors
- 👤 Pettorossi Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:17
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; B21D39/034; Y; Y10; Y10T; Y10T29/00; Y10T29/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US318221A
Cited
US689394A
Cited
AT39842B
Cited
US1201539A
Cited
US1286210A
Cited
US2333966A
Cited
US2404197A
Cited
US2430377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |