Patent US1735012A successfully refreshed from Google Patents.
Patent US2036028A successfully refreshed from Google Patents.
US2036028A
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Pumping mechanism
Assignee: EVANS APPLIANCE Co
•
Filing: 1934-04-13
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Granted: 1936-03-31
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Expires: 1954-04-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward S Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:13
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F02; F02M; F02M37/00; F02M37/04; F02M37/06; F04C15/00; F04C15/0057; F04C15/0061; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-03-31 | 1939-09-30 | 1940-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-31 | 1943-09-30 | 1944-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-31 | 1947-09-30 | 1948-03-31 | $7700.00 | Window Closed / Lapsed |