Patent US551268A successfully refreshed from Google Patents.
Patent US3177572A successfully refreshed from Google Patents.
US3177572A
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Apparatus and method for valve repair
Assignee: North American Aviation Corp
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Filing: 1963-08-02
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Granted: 1965-04-13
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Jack E Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:39
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/20; B21K1/24; F; F16; F16K; F16K3/00; F16K3/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49407; Y10T29/49718; Y10T29/49732
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
THE METHOD OF INSERTING A TAPERED VALVE WEDGE INTO A VALVE SEAT OF A VALVE BODY COMPRISING: (A) POSITIONING THE WEDGE IN THE VALVE SEAT REGION, (B) APPLYING CONTROLLED PRESSURE TO THE WEDGE, AND
Claim 2
Independent Claim
34 words
THE METHOD OF INSERTING A TAPERED VALVE WEDGE INTO A VALVE SEAT OF A VALVE BODY COMPRISING: (A) POSITIONING THE WEDGE IN THE VALVE SEAT REGION, (B) APPLYING CONTROLLED PRESSURE TO THE WEDGE, AND
References Cited (Backward Citations)
US594634A
Cited
US2627651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |