US3039052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensing device for turns counting
Assignee: LENKURT ELECTRIC CO Inc
•
Filing: 1959-10-14
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Granted: 1962-06-12
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Expires: 1979-10-14
Abstract
No abstract record available.
Inventors
- 👤 John M Coffin
- 👤 Adam G Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:19
CPC Classifications
H; H03; H03K; H03K21/00; H03K21/02; H01; H01F; H01F29/00; H01F29/14; H01F29/143; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1431638A
Cited
US1792979A
Cited
US1708074A
Cited
US1878109A
Cited
GB396098A
Cited
US2248569A
Cited
US2637115A
Cited
US2671139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |