US3056456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor head fairing
Assignee: RTX Corp
•
Filing: 1960-01-27
•
Granted: 1962-10-02
•
Expires: 1980-01-27
Abstract
No abstract record available.
Inventors
- 👤 Philip L Michel
- 👤 Evan A Fradenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
B; B64; B64C; B64C7/00; B64C27/00; B64C27/32; B64C27/46; B64C27/473; B64C27/50; B64C27/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1989544A
Cited
US2068617A
Cited
US2210190A
Cited
US2405777A
Cited
FR931198A
Cited
US2749994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |