Patent US2658381A successfully refreshed from Google Patents.
US2658381A
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Apparatus for timing a balance wheel assembly
Assignee: George W Borg Corp
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Filing: 1948-09-23
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Granted: 1953-11-10
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Expires: 1968-09-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel A Johnston
- 👤 Parker B Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:55
CPC Classifications
H; H03; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2358078A
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US2390608A
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US2424481A
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US2515195A
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |