US2938402A
Expired / Lapsed
US
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Assignee: GEORGE A BARBER
•
Filing: 1958-11-14
•
Granted: 1960-05-31
•
Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Knight N Willmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:54
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B66F3/18; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H2025/2062; F16H2025/209; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18712; Y10T74/1872; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20654
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US924692A
Cited
US1552011A
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US1860418A
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US1967481A
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US2166106A
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US2403096A
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US2541529A
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US2701478A
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US2776577A
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US2859640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |