US2634944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replacement valve unit
Assignee: WAITE Corp
•
Filing: 1948-11-10
•
Granted: 1953-04-14
•
Expires: 1968-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jackson L Waite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/44; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6011; Y10T137/6014; Y10T137/6065; Y10T137/7504; Y10T137/7668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1155576A
Cited
US1431701A
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US1730601A
Cited
US1526921A
Cited
US1669651A
Cited
US1635875A
Cited
US1988966A
Cited
US2089848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |