Patent US2726987A successfully refreshed from Google Patents.
Patent US1593914A successfully refreshed from Google Patents.
US1593914A
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Plate valve
Assignee: Ingersoll Rand Co
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Filing: 1926-01-09
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Granted: 1926-07-27
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Expires: 1946-01-09
Abstract
No abstract record available.
Inventors
- 👤 Snowden B Redfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:28
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/08; F16K17/00; F16K17/02; F16K17/04; F16K17/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7859; Y10T137/7861; Y10T137/7862; Y10T137/7863; Y10T137/7904; Y10T137/7922
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) | 1929-07-26 | 1930-01-25 | 1930-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-07-26 | 1934-01-25 | 1934-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-07-26 | 1938-01-25 | 1938-07-27 | $7700.00 | Window Closed / Lapsed |