US2746514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making compressor blades
Assignee: Cincinnati Testing and Research Laboratories
•
Filing: 1950-04-06
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Granted: 1956-05-22
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Expires: 1970-04-06
Abstract
No abstract record available.
Inventors
- 👤 Elmer P Warnken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:23
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0025; B29C; B29C43/00; B29C43/32; B29C43/36; B29C43/361; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/461; B32; B32B; B32B27/00; B64; B64C; B64C11/00; B64C11/16; B64C11/20; B64C11/26; F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/282; B29C2791/00; B29C2791/001; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2105/0854; B29K2105/0872; B29L; B29L2031/00; B29L2031/08; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/51; Y10T29/5116
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |