US2855634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous mat and method of making
Assignee: Owens Corning
•
Filing: 1954-12-22
•
Granted: 1958-10-14
•
Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Edward W Smart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:50
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/03; Y; Y10; Y10T; Y10T428/00; Y10T428/29
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |