US2568759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid or air cooled brake drum
Assignee: Individual
•
Filing: 1948-08-31
•
Granted: 1951-09-25
•
Expires: 1968-08-31
Abstract
No abstract record available.
Inventors
- 👤 Ancel S Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:20
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/82; F16D65/833; F16D65/02; F16D2065/13; F16D2065/1304; F16D2065/1328; F16D2065/1332
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE338237C
Cited
DE481521C
Cited
US1159502A
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US1137939A
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US1636040A
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AU786227A
Cited
US1881002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |