US2812221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jewel bearing support
Assignee: Individual
•
Filing: 1951-11-23
•
Granted: 1957-11-05
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Ii John A Cupler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:32
CPC Classifications
G; G01; G01G; G01G21/00; G01G21/02; G01G21/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1290564A
Cited
US2092180A
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US2121481A
Cited
US2182590A
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US2368007A
Cited
US2483765A
Cited
US2681835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |