US3529144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveform generator for compressor flow simulation
Assignee: ERICH KURT LAETSCH JR
•
Filing: 1968-05-22
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Granted: 1970-09-15
•
Expires: 1988-05-22
Abstract
No abstract record available.
Inventors
- 👤 Marvin Leroy Patterson
- 👤 Erich Kurt Laetsch Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2990531A
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US3041541A
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US3262069A
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US3319079A
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US3356865A
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US3364366A
Cited
US3392352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |