US2841423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stuffing box with helically arranged packings inserted from the side
Assignee: Individual
•
Filing: 1955-05-26
•
Granted: 1958-07-01
•
Expires: 1975-05-26
Abstract
No abstract record available.
Inventors
- 👤 Charles F Moseley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:12
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/164; E; E21; E21B; E21B33/00; E21B33/02; E21B33/08; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |