US2873587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination spare and service tail shaft assembly
Assignee: Individual
•
Filing: 1957-12-27
•
Granted: 1959-02-17
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Lyritzis Nikolaos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:27
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/32; B63H23/34; B63H23/321; B63H23/326; B63H2023/322; B63H2023/327; B63H2023/342; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |