Patent US2421685A successfully refreshed from Google Patents.
US2421685A
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US
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Alignable pulley
Assignee: Lockheed Martin Corp
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Filing: 1944-07-26
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Granted: 1947-06-03
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Expires: 1964-07-26
Abstract
No abstract record available.
Inventors
- 👤 Crot Andre
- 👤 Robert R Richolt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
F; F16; F16C; F16C23/00; F16C23/06; F16C13/00; F16C13/006; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/50; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2361/00; F16C2361/63
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) | 1950-06-02 | 1950-12-02 | 1951-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-02 | 1954-12-02 | 1955-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-02 | 1958-12-02 | 1959-06-03 | $7700.00 | Window Closed / Lapsed |