US1458931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming annular bodies
Assignee: Westinghouse Electric Corp
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Filing: 1918-11-04
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Granted: 1923-06-19
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Expires: 1938-11-04
Abstract
No abstract record available.
Inventors
- 👤 Louis T Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:00
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0082; B29C; B29C53/00; B29C53/56; B29C53/566; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/34; B29C70/347; B29L; B29L2031/00; B29L2031/709; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925
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) | 1926-06-18 | 1926-12-18 | 1927-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-06-18 | 1930-12-18 | 1931-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-06-18 | 1934-12-18 | 1935-06-19 | $7700.00 | Window Closed / Lapsed |