Patent US2880652A successfully refreshed from Google Patents.
US2880652A
Expired / Lapsed
US
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Ring gear broaching machine
Assignee: COLONIAL BROACH CO
•
Filing: 1952-11-28
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Granted: 1959-04-07
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Expires: 1972-11-28
Abstract
No abstract record available.
Inventors
- 👤 Welte Benedict
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:24
CPC Classifications
B; B23; B23F; B23F1/00; B23F1/08; Y; Y10; Y10T; Y10T409/00; Y10T409/10; Y10T409/109063; Y10T409/109222; Y10T74/00; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1429
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |