US2351802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral wool treating material
Assignee: Owens Corning
•
Filing: 1940-10-11
•
Granted: 1944-06-20
•
Expires: 1960-10-11
Abstract
No abstract record available.
Inventors
- 👤 William M Bergin
- 👤 Allen L Simison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:26
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/26; C03C25/32; C03C25/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-06-20 | 1947-12-20 | 1948-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-20 | 1951-12-20 | 1952-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-20 | 1955-12-20 | 1956-06-20 | $7700.00 | Window Closed / Lapsed |