US2008718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural material and method of making the same
Assignee: Johns Manville Corp
•
Filing: 1932-07-23
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Granted: 1935-07-23
•
Expires: 1952-07-23
Abstract
No abstract record available.
Inventors
- 👤 Edward M Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:47
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; Y; Y10; Y10S; Y10S264/00; Y10S264/63; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24942; Y10T428/24992; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/249986; Y10T428/31504; Y10T428/31652
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) | 1938-07-22 | 1939-01-21 | 1939-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-07-22 | 1943-01-21 | 1943-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-07-22 | 1947-01-21 | 1947-07-23 | $7700.00 | Window Closed / Lapsed |