Patent US2400181A successfully refreshed from Google Patents.
US2400181A
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US
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Assignee: Individual
•
Filing: 1942-09-03
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Granted: 1946-05-14
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Expires: 1962-09-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard F Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:29
CPC Classifications
F; F16; F16G; F16G9/00; D; D07; D07B; D07B1/00; D07B1/005; D07B1/14; D07B1/141; D07B1/142; D07B1/144; D07B1/16; D07B1/165; D07B1/167; D07B2201/00; D07B2201/10; D07B2201/1012; D07B2201/1014; D07B2201/1016; D07B2201/1028; D07B2201/1036; D07B2201/20; D07B2201/2001; D07B2201/2002; D07B2201/2003; D07B2201/2015; D07B2201/2021; D07B2201/2047; D07B2201/2048; D07B2201/2049; D07B2201/2052; D07B2201/2053; D07B2201/2055; D07B2201/2057; D07B2201/2071; D07B2201/2073; D07B2205/00; D07B2205/20; D07B2205/2021; D07B7/00; D07B7/02; D07B7/025
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) | 1949-05-13 | 1949-11-12 | 1950-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-13 | 1953-11-12 | 1954-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-13 | 1957-11-12 | 1958-05-14 | $7700.00 | Window Closed / Lapsed |