US2512531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating mechanism
Assignee: Herman Pneumatic Machine Co
•
Filing: 1945-08-28
•
Granted: 1950-06-20
•
Expires: 1965-08-28
Abstract
No abstract record available.
Inventors
- 👤 Tirzah A Renkenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:03
CPC Classifications
B; B22; B22C; B22C11/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87233; Y10T137/87265; Y10T137/87338
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1010000A
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US1389300A
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US1517798A
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US1707781A
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US1626225A
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US1661621A
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US1877102A
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US2060854A
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US2206459A
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US2252418A
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US2380575A
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US2381664A
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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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |