Patent US2990181A successfully refreshed from Google Patents.
US2990181A
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Assignee: Individual
•
Filing: 1958-02-10
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Granted: 1961-06-27
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Expires: 1978-02-10
Abstract
No abstract record available.
Inventors
- 👤 John E Lippold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00003; A63F3/00088; A63F3/00091; A63F3/00697; A63F2003/00716; A63F2003/00719; A63F3/00006; A63F3/00173; A63F3/00574; A63F9/00; A63F9/04; A63F9/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR452539A
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FR16993E
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US1357109A
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US1538134A
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US1517847A
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US1572254A
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US2442194A
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US2657057A
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US2702709A
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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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |