US2783771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stall cock
Assignee: Babson Brothers Co
•
Filing: 1952-11-12
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Granted: 1957-03-05
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Expires: 1972-11-12
Abstract
No abstract record available.
Inventors
- 👤 Chester A Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:28
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; A01J5/044; F; F16; F16K; F16K31/00; F16K31/44; F16K31/58; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T24/39; Y10T24/3936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-04 | 1960-09-03 | 1961-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-04 | 1964-09-03 | 1965-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-04 | 1968-09-03 | 1969-03-05 | $7700.00 | Window Closed / Lapsed |