US2881530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing the profiles of involute gear teeth
Assignee: MAAG GEAR WHEEL AND MACHINERY
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Filing: 1957-03-18
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Granted: 1959-04-14
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Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Muller Karl
- 👤 Rotheli Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:29
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE374586C
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US1670456A
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US2217998A
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US2337144A
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US2336550A
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US2677310A
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US2725776A
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GB746586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |