Patent US2040374A successfully refreshed from Google Patents.
US2040374A
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Fastening means
Assignee: Lummus Industries Inc Co
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Filing: 1934-06-29
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Granted: 1936-05-12
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Expires: 1954-06-29
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus S Grimes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:33
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6125; E04B1/6137; F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B2200/00; F16B2200/40; F16B2200/403; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49838; Y10T403/00; Y10T403/75
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) | 1939-05-12 | 1939-11-11 | 1940-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-12 | 1943-11-11 | 1944-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-12 | 1947-11-11 | 1948-05-12 | $7700.00 | Window Closed / Lapsed |