US2575394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating piston and cylinder mechanism
Assignee: Union Carbide Corp
•
Filing: 1944-12-27
•
Granted: 1951-11-20
•
Expires: 1964-12-27
Abstract
No abstract record available.
Inventors
- 👤 Philip K Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:13
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/06; F01; F01B; F01B17/00; F01B17/02; F01B17/04; F04; F04B; F04B15/00; F04B15/06; F04B15/08; F04B39/00; F04B39/04; F04B39/08; F01B2171/00; F01B2171/13; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 0
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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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |