Patent US2998187A successfully refreshed from Google Patents.
US2998187A
Expired / Lapsed
US
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Electro-magnetic counters
Assignee: General Controls Co
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Filing: 1956-06-22
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Granted: 1961-08-29
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Expires: 1976-06-22
Abstract
No abstract record available.
Inventors
- 👤 Burnell J Wollar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/102; G06M1/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1142034A
Cited
FR474912A
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US1494070A
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US1769539A
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GB468974A
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US2487469A
Cited
US2522734A
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US2540808A
Cited
US2652198A
Cited
US2673685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |