US2870686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic expanding mandrel
Assignee: EARL R LOWE
•
Filing: 1954-04-28
•
Granted: 1959-01-27
•
Expires: 1974-04-28
Abstract
No abstract record available.
Inventors
- 👤 Smith Gordon Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:06
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/40; B23B31/4006; B23G; B23G1/00; B23G1/32; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1004; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T409/00; Y10T409/30; Y10T409/300056; Y10T409/30056; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304906A
Cited
US2734749A
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FR503531A
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US1548730A
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US1566370A
Cited
DE469963C
Cited
US1873515A
Cited
GB653837A
Cited
US2671371A
Cited
US2692693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |