US3066394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of deeply-webbed girders
Assignee: Individual
•
Filing: 1959-01-30
•
Granted: 1962-12-04
•
Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Litzka Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:19
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C3/083; E04C3/086; B; B21; B21D; B21D47/00; B21D47/04; E04C2003/0404; E04C2003/0408; E04C2003/0413; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0452; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49625; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/5138; Y10T29/53; Y10T29/53961; Y10T29/53974; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6595
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US740730A
Cited
US1623249A
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US1644940A
Cited
US2002044A
Cited
US2106602A
Cited
US2277615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |