US2681622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spool valve pump
Assignee: WYOTT Manufacturing CO Inc
•
Filing: 1949-04-18
•
Granted: 1954-06-22
•
Expires: 1969-04-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Titus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:12
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/58; B67D7/60; B67D1/00; B67D1/08; B67D1/10; B67D1/101; F; F04; F04B; F04B9/00; F04B9/14
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |