Patent US2786311A successfully refreshed from Google Patents.
US2786311A
Expired / Lapsed
US
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Cam grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1955-05-09
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Granted: 1957-03-26
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Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Oiva E Hill
- 👤 Clarence J Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:19
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/08; B24B19/12; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2017927A
Cited
US2022178A
Cited
US2078462A
Cited
US2117916A
Cited
US2078463A
Cited
US2535130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-25 | 1960-09-24 | 1961-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-25 | 1964-09-24 | 1965-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-25 | 1968-09-24 | 1969-03-26 | $7700.00 | Window Closed / Lapsed |