Patent US1484815A successfully refreshed from Google Patents.
US1484643A
Expired / Lapsed
US
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Hand regulating valve for rotation motors
Assignee: Ingersoll Rand Co
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Filing: 1923-04-13
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Granted: 1924-02-26
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Expires: 1943-04-13
Abstract
No abstract record available.
Inventors
- 👤 Charles C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:43
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10S; Y10S415/00; Y10S415/904; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613; Y10T137/8593; Y10T137/87096
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) | 1927-02-25 | 1927-08-27 | 1928-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-25 | 1931-08-27 | 1932-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-25 | 1935-08-27 | 1936-02-26 | $7700.00 | Window Closed / Lapsed |