Patent US4625712A successfully refreshed from Google Patents.
US1766471A
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Structural material
Assignee: Glenn L Martin Co
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Filing: 1927-09-16
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Granted: 1930-06-24
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Expires: 1947-09-16
Abstract
No abstract record available.
Inventors
- 👤 Charles A Van Dusen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:39
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/06; B29; B29K; B29K2021/00; B29K2105/00; B29K2105/04; B32B38/00; B32B2038/0052; B32B2038/0076; B32B2305/00; B32B2305/08; B32B2311/00; B32B2319/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339; Y10T428/24347; Y10T428/249921; Y10T428/249953; Y10T428/24996; Y10T428/249981; Y10T428/249987; Y10T428/24999; Y10T428/31504; Y10T428/31678; Y10T428/31707
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) | 1933-06-23 | 1933-12-23 | 1934-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-23 | 1937-12-23 | 1938-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-23 | 1941-12-23 | 1942-06-24 | $7700.00 | Window Closed / Lapsed |