US2822823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary disk valve with ratchet operating means
Assignee: McNeil Machine and Engineering Co
•
Filing: 1954-08-04
•
Granted: 1958-02-11
•
Expires: 1974-08-04
Abstract
No abstract record available.
Inventors
- 👤 Victor G Klein
- 👤 Norbert F Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:47
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/04; F16K3/06; F16K3/08; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US615717A
Cited
US1290640A
Cited
US1607827A
Cited
US1842382A
Cited
US1930902A
Cited
US2677391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |