US3488928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Dollinger Corp
•
Filing: 1967-05-19
•
Granted: 1970-01-13
•
Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Tarala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:25
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/024; F04; F04B; F04B39/00; F04B39/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1328044A
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US1635007A
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US2082871A
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FR1121854A
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US2919765A
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US2962121A
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US3012631A
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US2979159A
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FR1237198A
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GB882647A
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GB1000575A
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US3266226A
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US3347076A
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US3186391A
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US3339347A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |