Patent US3020871A successfully refreshed from Google Patents.
US3020871A
Expired / Lapsed
US
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Multiple barrel mine anchor-line cutter
Assignee: MSA Safety Inc
•
Filing: 1959-01-14
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Granted: 1962-02-13
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Expires: 1979-01-14
Abstract
No abstract record available.
Inventors
- 👤 Temple Robert
- 👤 Joseph L Giebel
- 👤 Ernest E Temple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:38
CPC Classifications
B; B63; B63G; B63G7/00; B63G7/02; B63G7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2135888A
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US2216359A
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US2262925A
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US2800868A
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US2806442A
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US2422506A
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US2601245A
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US2667837A
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US2759419A
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US2910034A
Cited
US2953092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |