US2413645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stuffing box for water-cooled shafts
Assignee: MICHIANA PRODUCTS Corp
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Filing: 1944-04-12
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Granted: 1946-12-31
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Expires: 1964-04-12
Abstract
No abstract record available.
Inventors
- 👤 Nygren Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:59
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/087; F16L27/093; F16J; F16J15/00; F16J15/54; Y; Y10; Y10S; Y10S277/00; Y10S277/907; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-12-30 | 1950-07-01 | 1950-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-12-30 | 1954-07-01 | 1954-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-12-30 | 1958-07-01 | 1958-12-31 | $7700.00 | Window Closed / Lapsed |