US2760791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure seal construction for rotating members
Assignee: Blaw Knox Co
•
Filing: 1950-11-30
•
Granted: 1956-08-28
•
Expires: 1970-11-30
Abstract
No abstract record available.
Inventors
- 👤 Herman E Neubauer
- 👤 Guy N Harcourt
- 👤 Angstadt John Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:13
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/40; F16J15/46; Y; Y10; Y10S; Y10S277/00; Y10S277/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2385627A
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US2396212A
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US2402224A
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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) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |