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US2819013A
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Diaphragm compressor pump
Assignee: Cline Electric Manufacturing Co
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Filing: 1953-08-13
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Granted: 1958-01-07
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Expires: 1973-08-13
Abstract
No abstract record available.
Inventors
- 👤 Jens A Paasche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
F; F04; F04B; F04B11/00; F04B11/0091; F04B39/00; F04B39/10; F04B39/102; F04B45/00; F04B45/04; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6525; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7938; Y10T137/8593; Y10T137/85978; Y10T137/86035
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US616575A
Cited
US937629A
Cited
US1177011A
Cited
US1326358A
Cited
US1359006A
Cited
US1711013A
Cited
US1998444A
Cited
US1797453A
Cited
US1965497A
Cited
US1895602A
Cited
US2277135A
Cited
US2415060A
Cited
US2426965A
Cited
US2436854A
Cited
US2504470A
Cited
US2471796A
Cited
US2605044A
Cited
US2569176A
Cited
US2609857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |