US2951269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felting method and apparatus
Assignee: COLUMBIA ENGINEERING Co L
•
Filing: 1956-03-23
•
Granted: 1960-09-06
•
Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Vajda Peter
- 👤 Sidney C Rooney
- 👤 Kragh-Hansen Svend
- 👤 Ian B Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:38
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/10; B27N3/14
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |