Patent US3719926A successfully refreshed from Google Patents.
Patent US2938260A successfully refreshed from Google Patents.
US2938260A
Expired / Lapsed
US
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Method of fabricating cylinder barrels
Assignee: Curtiss Wright Corp
•
Filing: 1954-04-02
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Granted: 1960-05-31
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Expires: 1974-04-02
Abstract
No abstract record available.
Inventors
- 👤 Martin M Holben
- 👤 Komorowski Sidney
- 👤 Ruby Jerry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:23
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/04; F02F1/06; F02F1/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49805; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1853562A
Cited
US1856874A
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GB434298A
Cited
US2118317A
Cited
US2144928A
Cited
US2125106A
Cited
US2340349A
Cited
US2270548A
Cited
US2720735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |