Patent US2957229A successfully refreshed from Google Patents.
US2957229A
Expired / Lapsed
US
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Method of fabricating curved fittings
Assignee: Individual
•
Filing: 1954-12-23
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Granted: 1960-10-25
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Allan W Beatty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:38
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/283; B21D; B21D7/00; B21D7/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49444; Y10T29/49446
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2285275A
Cited
US2373822A
Cited
US2528315A
Cited
US2612205A
Cited
US2675049A
Cited
GB624227A
Cited
US2500813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |