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US2981307A
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US
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Assignee: Individual
•
Filing: 1957-06-24
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Granted: 1961-04-25
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Neil Malarkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:19
CPC Classifications
B; B30; B30B; B30B5/00; B30B5/04; B30B5/06; B27; B27D; B27D3/00; B27D3/04; B27N; B27N3/00; B27N3/08; B27N3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2663350A
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US814987A
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US1391805A
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US1825282A
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US2142932A
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US2281860A
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US2304571A
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US2469972A
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US2600164A
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US2602960A
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US2535642A
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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) | 1964-04-24 | 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 |