US3025361A
Expired / Lapsed
US
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Assignee: ROBERT E HARTSOCK
•
Filing: 1959-05-14
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Granted: 1962-03-13
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Expires: 1979-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robert E Hartsock
- 👤 James G Hartsock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:15
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/40; H01H1/403; H01H19/00; H01H19/54; H01H19/56; H01H19/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US276103A
Cited
DE377360C
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US1738994A
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US1801214A
Cited
US1852805A
Cited
FR905841A
Cited
US2436750A
Cited
US2472230A
Cited
US2821580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |