Patent US3369735A successfully refreshed from Google Patents.
US3369735A
Expired / Lapsed
US
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Gas-jet suction device, particularly for connection to a vacuum pump
Assignee: Siemens AG
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Filing: 1966-06-20
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Granted: 1968-02-20
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Expires: 1986-06-20
Abstract
No abstract record available.
Inventors
- 👤 Hoffmeister Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:18
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/466; F16; F16K; F16K51/00; F16K51/02; F05; F05C; F05C2225/00; Y; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1951588A
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US1890708A
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US2396290A
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US2549218A
Cited
US2859703A
Cited
US3064878A
Cited
US3018799A
Cited
US3031127A
Cited
US3166020A
Cited
US3146726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |