Patent US2996790A successfully refreshed from Google Patents.
US2996790A
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US
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Methods of manufacturing hollow articles
Assignee: The General Electric Company PLC
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Filing: 1957-08-22
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Granted: 1961-08-22
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Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Trafford Richard Alfred Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:51
CPC Classifications
H; H01; H01P; H01P11/00; H01P11/001; H01P11/002; B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR958151A
Cited
US1918197A
Cited
GB468907A
Cited
US2215318A
Cited
US2258681A
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US2322845A
Cited
FR915062A
Cited
US2505424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |