US2683980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated building structure
Assignee: Owens Corning
•
Filing: 1945-12-21
•
Granted: 1954-07-20
•
Expires: 1965-12-21
Abstract
No abstract record available.
Inventors
- 👤 Krause Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:28
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US392625A
Cited
US1450724A
Cited
US641067A
Cited
US666079A
Cited
US856000A
Cited
US969289A
Cited
US1054424A
Cited
US1106584A
Cited
US1335909A
Cited
US1748505A
Cited
US1932941A
Cited
US1784502A
Cited
US1882432A
Cited
US1925302A
Cited
US1877053A
Cited
GB385416A
Cited
US1951421A
Cited
US1996658A
Cited
US2097821A
Cited
US2141946A
Cited
US2162861A
Cited
US2252157A
Cited
US2340911A
Cited
US2318362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |