US2540738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction drive
Assignee: Fed Manufacturing & Engineering Corp
•
Filing: 1948-04-23
•
Granted: 1951-02-06
•
Expires: 1968-04-23
Abstract
No abstract record available.
Inventors
- 👤 Kaplowitz Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:29
CPC Classifications
G; G05; G05G; G05G23/00; F; F16; F16H; F16H19/00; G03; G03B; G03B27/00; G03B27/32; G03B27/326; G05G2700/00; G05G2700/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/188; Y10T74/18808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2119710A
Cited
US2329635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |