US3549444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament wound blade and compressor
Assignee: Individual
•
Filing: 1967-12-28
•
Granted: 1970-12-22
•
Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Harry S Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/564; B29C53/80; B29C53/82; B29C53/821; B29C53/824; F; F04; F04D; F04D29/00; F04D29/02; F04D29/023; F04D29/26; F04D29/32; F04D29/321; B29L; B29L2031/00; B29L2031/08; F05; F05D; F05D2300/00; F05D2300/60; F05D2300/614; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |