Patent US2981150A successfully refreshed from Google Patents.
US2981150A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1954-06-15
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Granted: 1961-04-25
•
Expires: 1974-06-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur H Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:29
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/0406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735391A
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US688952A
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US798666A
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GB123833A
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US1380243A
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US1661091A
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US1836010A
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US2703508A
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US2474250A
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US2582548A
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US2710384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |