US2969775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Ross Gear and Tool Co Inc
•
Filing: 1957-09-23
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Granted: 1961-01-31
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Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Richard K Thelen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:05
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B9/00; F15B9/02; F15B9/08; F15B9/10; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/044; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/86879; Y10T137/86895; Y10T137/87169; Y10T137/87217; Y10T137/87225
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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |