US2985264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form supporting girder
Assignee: JULIUS G FORSTMANN
•
Filing: 1954-10-19
•
Granted: 1961-05-23
•
Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Byron H Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:32
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/48; E04G11/50; E04G11/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US732164A
Cited
US1112542A
Cited
US1163641A
Cited
US1987769A
Cited
US2687193A
Cited
US2793720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |