Patent US2490333A successfully refreshed from Google Patents.
US2490333A
Expired / Lapsed
US
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Flexible stuffing box and pipe joint assembly
Assignee: Individual
•
Filing: 1946-08-15
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Granted: 1949-12-06
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Expires: 1966-08-15
Abstract
No abstract record available.
Inventors
- 👤 Henry J Basham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:48
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/08; F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/187
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775729A
Cited
US1970513A
Cited
US2126706A
Cited
US2173359A
Cited
US2138968A
Cited
GB536846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |