US3563674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspirating device
Assignee: SPX Technologies Inc
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Filing: 1968-07-16
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Granted: 1971-02-16
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Expires: 1988-07-16
Abstract
Abstract AN ASPIRATING DEVICE COMPRISING A NOZZLE AND A THROAT PORTION WITH A SUCTION CHAMBER BETWEEN, THE THROAT POR- TION BEING COAXIAL WITH THE NOZZLE AND OF A GREATER DIAMETER, THE SUCTION CHAMBER BEING OF A DIAMETER GREATER THAN THE THROAT PORTION WHEREIN THE RELATIVE DIAMETERS AND LENGTHS OF THE PARTS ARE SIGNIFICANT.
Inventors
- 👤 Donald L Moffat
- 👤 Gardiner M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:45
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |