US2888060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement and method for the production of mats or similar flat formations of mineral wool
Assignee: Rockwool AB
•
Filing: 1957-05-20
•
Granted: 1959-05-26
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kjell-Berger Sven Olof Kjell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:52
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4218; D04H1/4226; D04H1/58; D04H1/64
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |