Patent US2030509A successfully refreshed from Google Patents.
Patent US2821254A successfully refreshed from Google Patents.
US2821254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam-plastic skiving machine
Assignee: Individual
•
Filing: 1954-10-04
•
Granted: 1958-01-28
•
Expires: 1974-10-04
Abstract
No abstract record available.
Inventors
- 👤 Kernen Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:31
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/006; B26D3/008; B26D3/28; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/952; Y10T; Y10T83/00; Y10T83/02; Y10T83/0267; Y10T83/04; Y10T83/0524; Y10T83/0572; Y10T83/566; Y10T83/869; Y10T83/887
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US368758A
Cited
US1839383A
Cited
AT130317B
Cited
US2565400A
Cited
US2457301A
Cited
US2609048A
Cited
US2627237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |