Patent US2234382A successfully refreshed from Google Patents.
US2234382A
Expired / Lapsed
US
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Machine for cutting or grinding spirally grooved cams
Assignee: Ross Gear and Tool Co Inc
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Filing: 1939-07-19
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Granted: 1941-03-11
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Expires: 1959-07-19
Abstract
No abstract record available.
Inventors
- 👤 Percy A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:05
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/08; B24B19/12; B24B19/02; B24B19/022; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-03-10 | 1944-09-09 | 1945-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-10 | 1948-09-09 | 1949-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-10 | 1952-09-09 | 1953-03-11 | $7700.00 | Window Closed / Lapsed |