Patent US2908286A successfully refreshed from Google Patents.
US2908286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connector valve for central suction plants
Assignee: Individual
•
Filing: 1956-06-01
•
Granted: 1959-10-13
•
Expires: 1976-06-01
Abstract
No abstract record available.
Inventors
- 👤 Hallstrom Olof Henrik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:12
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/1018; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/38; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7898; Y10T137/7903
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2735644A
Cited
US1037083A
Cited
US1096278A
Cited
US1255175A
Cited
US1743293A
Cited
DE680031C
Cited
US2311110A
Cited
DE849340C
Cited
US2708766A
Cited
US2717757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |