US2494598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic packing and seal
Assignee: Individual
•
Filing: 1947-06-16
•
Granted: 1950-01-17
•
Expires: 1967-06-16
Abstract
No abstract record available.
Inventors
- 👤 Alfred C Waring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:56
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946; Y10S285/00; Y10S285/918; Y10S417/00; Y10S417/01
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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |