Patent US2572718A successfully refreshed from Google Patents.
US2572718A
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US
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Friction drive
Assignee: Lord Manufacturing Co
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Filing: 1946-08-09
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Granted: 1951-10-23
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Expires: 1966-08-09
Abstract
No abstract record available.
Inventors
- 👤 Allen G Gifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:24
CPC Classifications
G; G11; G11B; G11B17/00; F; F16; F16H; F16H13/00; F16H13/10; G11B19/00; G11B19/20; G11B19/26; G11B19/265; G11B7/00
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) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |