Patent US2804725A successfully refreshed from Google Patents.
US2804725A
Expired / Lapsed
US
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Apparatus for precision contouring
Assignee: Raytheon Co
•
Filing: 1954-05-17
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Granted: 1957-09-03
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Expires: 1974-05-17
Abstract
No abstract record available.
Inventors
- 👤 Edward C Dench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:06
CPC Classifications
B; B24; B24B; B24B1/00; B24B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2320874A
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US2632858A
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US2580716A
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US2670446A
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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) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |