US2842153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing gate valve
Assignee: Individual
•
Filing: 1955-02-16
•
Granted: 1958-07-08
•
Expires: 1975-02-16
Abstract
No abstract record available.
Inventors
- 👤 Volpin Alexander Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1609894A
Cited
US1197635A
Cited
US1214645A
Cited
US1798952A
Cited
US1999592A
Cited
GB434557A
Cited
US2383099A
Cited
US2570413A
Cited
US2653789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |