US2992806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve construction
Assignee: Crane Co
•
Filing: 1958-01-02
•
Granted: 1961-07-18
•
Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jerome J Kanter
- 👤 Carl U Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:19
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/304; E03D1/306; F; F16; F16K; F16K21/00; F16K21/04; F16K21/18; F16K33/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7339
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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |