US2614797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fluid seal controlling device
Assignee: Ingersoll Rand Co
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Filing: 1947-03-10
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Granted: 1952-10-21
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Expires: 1967-03-10
Abstract
No abstract record available.
Inventors
- 👤 Carleton B Kidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:12
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/04; F01D11/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87732; Y10T74/00; Y10T74/18; Y10T74/18992; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |