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US3029633A
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Assignee: Marquardt Corp
•
Filing: 1957-09-23
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Granted: 1962-04-17
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Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Bauer
- 👤 Philip R Dahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:38
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2362446A
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US2470565A
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US2575304A
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US2450835A
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US2637999A
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US2880579A
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US2850871A
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US2911788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |