US3391586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machining apparatus
Assignee: Cross Co
•
Filing: 1966-03-21
•
Granted: 1968-07-09
•
Expires: 1986-03-21
Abstract
No abstract record available.
Inventors
- 👤 Kieboom John Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:36
CPC Classifications
B; B23; B23Q; B23Q27/00; B23Q27/003; B23B; B23B5/00; Y; Y10; Y10T; Y10T82/00; Y10T82/13; Y10T82/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2720806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |