US3390899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible joint means
Assignee: Lockheed Martin Corp
•
Filing: 1965-03-15
•
Granted: 1968-07-02
•
Expires: 1985-03-15
Abstract
No abstract record available.
Inventors
- 👤 John T Herbert
- 👤 Jr Frank J Kovich
- 👤 Mccorkle Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:02
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/80; F02K9/84; Y; Y10; Y10T; Y10T403/00; Y10T403/40; Y10T403/405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1229417A
Cited
GB542208A
Cited
DE928384C
Cited
US3190680A
Cited
US3032982A
Cited
US3110510A
Cited
US3168334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |