Patent US3369301A successfully refreshed from Google Patents.
US3369301A
Expired / Lapsed
US
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Pantograph type pattern contour tracing system
Assignee: Stewart Warner Corp
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Filing: 1965-11-18
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Granted: 1968-02-20
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Expires: 1985-11-18
Abstract
No abstract record available.
Inventors
- 👤 Brouwer Frans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:24
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2226677A
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US2317526A
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US2278607A
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US2305909A
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US2988643A
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US2933612A
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US3069550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |