US3017191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical seal
Assignee: Combustion Engineering Inc
•
Filing: 1956-10-10
•
Granted: 1962-01-16
•
Expires: 1976-10-10
Abstract
No abstract record available.
Inventors
- 👤 Robert C Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:36
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; F16J15/3464; F16J15/3472; Y; Y10; Y10S; Y10S277/00; Y10S277/904; Y10S277/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1272171A
Cited
GB252407A
Cited
US2185554A
Cited
US2166405A
Cited
US2354478A
Cited
US2370964A
Cited
US2485537A
Cited
US2881013A
Cited
US2738208A
Cited
US2857181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |