Patent US2662272A successfully refreshed from Google Patents.
US2662272A
Expired / Lapsed
US
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Manufacture of fabricated joists
Assignee: Macomber Inc
•
Filing: 1949-02-15
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Granted: 1953-12-15
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Expires: 1969-02-15
Abstract
No abstract record available.
Inventors
- 👤 Robert C Macomber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:50
CPC Classifications
B; B21; B21D; B21D47/00; B21D47/04; E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C3/09; E04C2003/0486; E04C2003/0491; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49625; Y10T29/49789; Y10T29/49798
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806639A
Cited
US1839178A
Cited
US1880000A
Cited
US1880003A
Cited
US1871521A
Cited
US1983632A
Cited
US2088120A
Cited
US2111357A
Cited
US2130797A
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US2277615A
Cited
US2241617A
Cited
US2308080A
Cited
US2376574A
Cited
US2542172A
Cited
US2567790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |