US3108926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of sheet structures comprising fibrous materials and glass flakelets
Assignee: Owens Corning
•
Filing: 1956-10-19
•
Granted: 1963-10-29
•
Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Brown Alfred Winsor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:22
CPC Classifications
D; D21; D21H; D21H13/00; D21H13/36; D21H13/38; D21H13/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US726485A
Cited
US1868566A
Cited
US2233259A
Cited
US2504744A
Cited
US2457785A
Cited
US2694630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |