US2679622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curve follower
Assignee: General Precision Laboratory Inc
•
Filing: 1951-05-19
•
Granted: 1954-05-25
•
Expires: 1971-05-19
Abstract
No abstract record available.
Inventors
- 👤 Hubert B Deri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:55
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/121; B23Q35/123; B23Q35/124; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2423480A
Cited
US2354391A
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US2434854A
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US2536892A
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US2557824A
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US2470244A
Cited
US2489305A
Cited
US2499178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |