US3056173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic fiber felting head
Assignee: Weyerhaeuser Co
•
Filing: 1958-07-11
•
Granted: 1962-10-02
•
Expires: 1978-07-11
Abstract
No abstract record available.
Inventors
- 👤 George B Matter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:44
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2698271A
Cited
US2624079A
Cited
US2751633A
Cited
GB668216A
Cited
US2687363A
Cited
US2738557A
Cited
US2993239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |