US2732169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
matteo
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:27
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; Y; Y10; Y10S; Y10S285/00; Y10S285/911; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981; Y10T137/87997; Y10T137/88005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US543008A
Cited
US750539A
Cited
US492619A
Cited
US638518A
Cited
US902894A
Cited
US1024560A
Cited
US1284496A
Cited
GB112003A
Cited
US1762771A
Cited
US1678377A
Cited
US1854051A
Cited
FR727075A
Cited
US1893194A
Cited
US2377196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |