US2137748A
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Assignee: JOHN H BEST AND SONS Inc
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Filing: 1937-10-20
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Granted: 1938-11-22
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Expires: 1957-10-20
Abstract
No abstract record available.
Inventors
- 👤 Leon H Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
A; A47; A47F; A47F7/00; A47F7/16; A47F7/163; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T279/00; Y10T279/17; Y10T279/17128; Y10T279/17171; Y10T279/17188; Y10T292/00; Y10T292/45; Y10T292/47
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) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |