US2513533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing device for fluid pressure apparatus
Assignee: Whitnash PLC
•
Filing: 1947-02-03
•
Granted: 1950-07-04
•
Expires: 1967-02-03
Abstract
No abstract record available.
Inventors
- 👤 Thornhill Peter Warborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:38
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; F16J15/166; F16J15/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US859326A
Cited
US1867045A
Cited
US2208620A
Cited
GB518193A
Cited
US2309154A
Cited
US2316941A
Cited
US2387182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |