US2422306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed mechanism
Assignee: George W Borg Corp
•
Filing: 1944-07-28
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Granted: 1947-06-17
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Expires: 1964-07-28
Abstract
No abstract record available.
Inventors
- 👤 Gordon F Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:35
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/02; F16H15/04; F16H15/40; F16H15/06; F16H15/08; F16H15/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US684191A
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US692391A
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US1081636A
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US1066853A
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FR19771E
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AT87088B
Cited
US1803834A
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US2132801A
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FR816982A
Cited
US2209254A
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US2325323A
Cited
US2357035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-16 | 1950-12-16 | 1951-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-16 | 1954-12-16 | 1955-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-16 | 1958-12-16 | 1959-06-17 | $7700.00 | Window Closed / Lapsed |