Patent US1572231A successfully refreshed from Google Patents.
US1572231A
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US
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Pumping apparatus
Assignee: Delco Light Co
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Filing: 1923-03-30
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Granted: 1926-02-09
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Expires: 1943-03-30
Abstract
No abstract record available.
Inventors
- 👤 George A Buvinger
- 👤 Warner Clarence
- 👤 Jasper A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
F; F04; F04B; F04B11/00; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/313; Y10T137/3133
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) | 1929-02-08 | 1929-08-10 | 1930-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-02-08 | 1933-08-10 | 1934-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-02-08 | 1937-08-10 | 1938-02-09 | $7700.00 | Window Closed / Lapsed |