Patent US2747608A successfully refreshed from Google Patents.
US2747608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced resilient sleeve type valve construction
Assignee: Grove Valve and Regulator Co
•
Filing: 1950-10-28
•
Granted: 1956-05-29
•
Expires: 1970-10-28
Abstract
No abstract record available.
Inventors
- 👤 Grove Marvin Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:53
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075; F16K15/00; F16K15/14; F16K15/144; F16K15/145; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888; Y10T137/7889
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE218988C
Cited
US156908A
Cited
US167604A
Cited
US456028A
Cited
US512832A
Cited
US1199847A
Cited
US1368315A
Cited
DE333276C
Cited
DE336530C
Cited
US1413568A
Cited
US1730150A
Cited
US2283835A
Cited
US2382427A
Cited
US2353143A
Cited
US2608204A
Cited
US2621889A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |