US2651207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawbar actuating power amplifying apparatus
Assignee: SPX Technologies Inc
•
Filing: 1950-07-10
•
Granted: 1953-09-08
•
Expires: 1970-07-10
Abstract
No abstract record available.
Inventors
- 👤 Holly M Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:02
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/302; Y; Y10; Y10T; Y10T279/00; Y10T279/12; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/5383; Y10T74/00; Y10T74/18; Y10T74/18992; Y10T82/00; Y10T82/26; Y10T82/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1334503A
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US728572A
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US900856A
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US2134227A
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US2460251A
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US2444260A
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US2539913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |