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US2887060A
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Variable volume pumping mechanism
Assignee: American Brake Shoe Co
•
Filing: 1953-06-22
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Granted: 1959-05-19
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Expires: 1973-06-22
Abstract
No abstract record available.
Inventors
- 👤 Cecil E Adams
- 👤 William E Eschliman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:32
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C14/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2074618A
Cited
US2276895A
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US2432502A
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US2247261A
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GB559108A
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US2419375A
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US2475413A
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US2549897A
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US2568356A
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US2611319A
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US2611245A
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US2618932A
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US2696788A
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US2746392A
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US2768582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |