US2184140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated thermoplastic insulation material
Assignee: Woodall Industries Inc
•
Filing: 1937-02-23
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Granted: 1939-12-19
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Expires: 1957-02-23
Abstract
No abstract record available.
Inventors
- 👤 George R Cunnington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:47
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/11; Y10T156/1168; Y10T156/1195; Y10T428/00; Y10T428/23; Y10T428/239; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/249982; Y10T428/249985
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) | 1942-12-18 | 1943-06-19 | 1943-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-18 | 1947-06-19 | 1947-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-18 | 1951-06-19 | 1951-12-19 | $7700.00 | Window Closed / Lapsed |