US2854027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable-type three-way valve construction
Assignee: Individual
•
Filing: 1956-12-20
•
Granted: 1958-09-30
•
Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 Albert W Kaiser
- 👤 Gerald K Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:01
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/223; F; F16; F16K; F16K27/00; F16K27/06; F16K27/062; Y; Y10; Y10S; Y10S251/00; Y10S251/904; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6058; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86823; Y10T137/86863; Y10T137/86871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731925A
Cited
US865406A
Cited
US867780A
Cited
US1478688A
Cited
US1710540A
Cited
US1961490A
Cited
US2261213A
Cited
US2343584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |