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US2632353A
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Assignee: SPRINGFIELD MACHINE TOOL CO
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Filing: 1948-02-26
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Granted: 1953-03-24
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Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Paul A Montanus
- 👤 Charles E Kraus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:56
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q2735/00; B23Q2735/02; B23Q2735/025; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/143; Y10T82/25; Y10T82/2531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1711290A
Cited
US1937400A
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US2051127A
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US2143255A
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US2173009A
Cited
US2437603A
Cited
US2557860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |