US2837810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing fittings
Assignee: Flexonics Corp
•
Filing: 1955-06-17
•
Granted: 1958-06-10
•
Expires: 1975-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ekholm Carl Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:07
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/28; B21C37/29; B21C37/294; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1542983A
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US1683123A
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US1710776A
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US1978452A
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US1960557A
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US1884589A
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US2057916A
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US2011721A
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US2155080A
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US2078195A
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US2238038A
Cited
US2509782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |