US2114911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction bearing center for boring mills
Assignee: Sellers William & Co Inc
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Filing: 1935-07-13
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Granted: 1938-04-19
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Expires: 1955-07-13
Abstract
No abstract record available.
Inventors
- 👤 Burt John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:55
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/40; B23Q1/44; B23Q1/50; B23Q1/52; B23Q1/522; F; F16; F16C; F16C19/00; F16C19/54; F16C19/541; F16C19/542; F16C35/00; F16C35/04; F16C35/06; F16C35/07; F16C19/02; F16C19/14; F16C19/16; F16C19/163; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/305544; Y10T409/305656
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) | 1941-04-18 | 1941-10-18 | 1942-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-18 | 1945-10-18 | 1946-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-18 | 1949-10-18 | 1950-04-19 | $7700.00 | Window Closed / Lapsed |