Patent US2220376A successfully refreshed from Google Patents.
US2220376A
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Extractor
Assignee: STAR EXPANSION BOLT Co
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Filing: 1937-09-02
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Granted: 1940-11-05
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Expires: 1957-09-02
Abstract
No abstract record available.
Inventors
- 👤 Henry H Mackal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:28
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/18; B25B27/02; B25B27/023; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53839; Y10T29/53848; Y10T29/53909; Y10T29/53943; Y10T29/53952; Y10T29/53957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-11-05 | 1944-05-06 | 1944-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-11-05 | 1948-05-06 | 1948-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-11-05 | 1952-05-06 | 1952-11-05 | $7700.00 | Window Closed / Lapsed |