US2725183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves for reciprocating compressors
Assignee: Carrier Corp
•
Filing: 1951-01-10
•
Granted: 1955-11-29
•
Expires: 1971-01-10
Abstract
No abstract record available.
Inventors
- 👤 Hanson Lars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:04
CPC Classifications
F; F04; F04B; F04B39/00; F04B39/10; F04B39/1073; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K15/16; F16K15/162; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7858; Y10T137/7879; Y10T137/7888; Y10T137/7891; Y10T137/7892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US771327A
Cited
US756869A
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US947536A
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US1299761A
Cited
US1633772A
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US1679012A
Cited
GB454536A
Cited
US2120852A
Cited
US2302447A
Cited
US2434734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |