US2136946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making bearing structures
Assignee: Union Carbide Corp
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Filing: 1935-06-18
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Granted: 1938-11-15
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Expires: 1955-06-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick T Mccurdy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:56
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49709
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) | 1941-11-14 | 1942-05-16 | 1942-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-14 | 1946-05-16 | 1946-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-14 | 1950-05-16 | 1950-11-15 | $7700.00 | Window Closed / Lapsed |