US2633945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural member
Assignee: CRESSWELL ROLL FORMING Co
•
Filing: 1949-01-19
•
Granted: 1953-04-07
•
Expires: 1969-01-19
Abstract
No abstract record available.
Inventors
- 👤 William R Millier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:31
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/30; E04C3/32; E04B; E04B2/00; E04B2/56; E04B2/58; E04B2/60; E04B2/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US359310A
Cited
US991603A
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US1214017A
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US1221941A
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US1754215A
Cited
US2101952A
Cited
US2160794A
Cited
US2356309A
Cited
US2410922A
Cited
US2328441A
Cited
US2454604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |