Patent US3084572A successfully refreshed from Google Patents.
US3084572A
Expired / Lapsed
US
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Gear-forming method and apparatus
Assignee: Individual
•
Filing: 1959-02-10
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Granted: 1963-04-09
•
Expires: 1979-02-10
Abstract
No abstract record available.
Inventors
- 👤 William A Starck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:11
CPC Classifications
B; B21; B21H; B21H5/00; B21H5/02; B21H5/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US133452A
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US717538A
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US1001799A
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US1377177A
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US1619997A
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US2886990A
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GB794946A
Cited
GB797860A
Cited
US2930877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |