US2652855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination vacuum and solenoid operated valve
Assignee: ACCURATE TOOL AND ENGINEERING
•
Filing: 1949-05-16
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Granted: 1953-09-22
•
Expires: 1969-05-16
Abstract
No abstract record available.
Inventors
- 👤 Wright Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0651; F16K31/0655; F16K31/0658; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/7069; Y10T137/8593; Y10T137/87917; Y10T137/88046; Y10T137/88054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1296735A
Cited
US1049845A
Cited
US1389056A
Cited
US2391129A
Cited
US2297076A
Cited
US2279243A
Cited
US2344826A
Cited
US2472544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |