US2667901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pattern controlled shaping machine
Assignee: SALSTROM CARVING MACHINE Co
•
Filing: 1950-11-28
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Granted: 1954-02-02
•
Expires: 1970-11-28
Abstract
No abstract record available.
Inventors
- 👤 David B Salstrom
- 👤 David N Salstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/109; B26; B26D; B26D1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2190213A
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US2340953A
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US2475326A
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US2418639A
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US2546692A
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US2476214A
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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) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |